# A091069 for range 1 .. 100000 computed by Antti Karttunen, 2018-11-10
# in GP/PARI CALCULATOR Version 2.9.4 (released) amd64 running linux (x86-64/GMP-6.1.2 kernel) 64-bit version, compiled: Dec 19 2017, gcc version 7.3.0 (Ubuntu 7.3.0-1ubuntu1), threading engine: pthread
# with the following program:
#
# A091069(n) = { my(r=1, f=factor(n)); for(j=1, #f[, 1], my(p=f[j, 1], e=f[j, 2]); if(p==2||e>=2, r=0); if((Mod(p, 8)==3||Mod(p, 8)==5)&e==1, r*=-1)); return(r); }; \\ From _Jianing Song_, Aug 30 2018
# for(n=1,100000,write("a091069.txt", n, " ", A091069(n)));
1 1
2 0
3 -1
4 0
5 -1
6 0
7 1
8 0
9 0
10 0
11 -1
12 0
13 -1
14 0
15 1
16 0
17 1
18 0
19 -1
20 0
21 -1
22 0
23 1
24 0
25 0
26 0
27 0
28 0
29 -1
30 0
31 1
32 0
33 1
34 0
35 -1
36 0
37 -1
38 0
39 1
40 0
41 1
42 0
43 -1
44 0
45 0
46 0
47 1
48 0
49 0
50 0
51 -1
52 0
53 -1
54 0
55 1
56 0
57 1
58 0
59 -1
60 0
61 -1
62 0
63 0
64 0
65 1
66 0
67 -1
68 0
69 -1
70 0
71 1
72 0
73 1
74 0
75 0
76 0
77 -1
78 0
79 1
80 0
81 0
82 0
83 -1
84 0
85 -1
86 0
87 1
88 0
89 1
90 0
91 -1
92 0
93 -1
94 0
95 1
96 0
97 1
98 0
99 0
100 0
101 -1
102 0
103 1
104 0
105 1
106 0
107 -1
108 0
109 -1
110 0
111 1
112 0
113 1
114 0
115 -1
116 0
117 0
118 0
119 1
120 0
121 0
122 0
123 -1
124 0
125 0
126 0
127 1
128 0
129 1
130 0
131 -1
132 0
133 -1
134 0
135 0
136 0
137 1
138 0
139 -1
140 0
141 -1
142 0
143 1
144 0
145 1
146 0
147 0
148 0
149 -1
150 0
151 1
152 0
153 0
154 0
155 -1
156 0
157 -1
158 0
159 1
160 0
161 1
162 0
163 -1
164 0
165 -1
166 0
167 1
168 0
169 0
170 0
171 0
172 0
173 -1
174 0
175 0
176 0
177 1
178 0
179 -1
180 0
181 -1
182 0
183 1
184 0
185 1
186 0
187 -1
188 0
189 0
190 0
191 1
192 0
193 1
194 0
195 -1
196 0
197 -1
198 0
199 1
200 0
201 1
202 0
203 -1
204 0
205 -1
206 0
207 0
208 0
209 1
210 0
211 -1
212 0
213 -1
214 0
215 1
216 0
217 1
218 0
219 -1
220 0
221 -1
222 0
223 1
224 0
225 0
226 0
227 -1
228 0
229 -1
230 0
231 1
232 0
233 1
234 0
235 -1
236 0
237 -1
238 0
239 1
240 0
241 1
242 0
243 0
244 0
245 0
246 0
247 1
248 0
249 1
250 0
251 -1
252 0
253 -1
254 0
255 1
256 0
257 1
258 0
259 -1
260 0
261 0
262 0
263 1
264 0
265 1
266 0
267 -1
268 0
269 -1
270 0
271 1
272 0
273 1
274 0
275 0
276 0
277 -1
278 0
279 0
280 0
281 1
282 0
283 -1
284 0
285 -1
286 0
287 1
288 0
289 0
290 0
291 -1
292 0
293 -1
294 0
295 1
296 0
297 0
298 0
299 -1
300 0
301 -1
302 0
303 1
304 0
305 1
306 0
307 -1
308 0
309 -1
310 0
311 1
312 0
313 1
314 0
315 0
316 0
317 -1
318 0
319 1
320 0
321 1
322 0
323 -1
324 0
325 0
326 0
327 1
328 0
329 1
330 0
331 -1
332 0
333 0
334 0
335 1
336 0
337 1
338 0
339 -1
340 0
341 -1
342 0
343 0
344 0
345 1
346 0
347 -1
348 0
349 -1
350 0
351 0
352 0
353 1
354 0
355 -1
356 0
357 -1
358 0
359 1
360 0
361 0
362 0
363 0
364 0
365 -1
366 0
367 1
368 0
369 0
370 0
371 -1
372 0
373 -1
374 0
375 0
376 0
377 1
378 0
379 -1
380 0
381 -1
382 0
383 1
384 0
385 1
386 0
387 0
388 0
389 -1
390 0
391 1
392 0
393 1
394 0
395 -1
396 0
397 -1
398 0
399 1
400 0
401 1
402 0
403 -1
404 0
405 0
406 0
407 1
408 0
409 1
410 0
411 -1
412 0
413 -1
414 0
415 1
416 0
417 1
418 0
419 -1
420 0
421 -1
422 0
423 0
424 0
425 0
426 0
427 -1
428 0
429 -1
430 0
431 1
432 0
433 1
434 0
435 -1
436 0
437 -1
438 0
439 1
440 0
441 0
442 0
443 -1
444 0
445 -1
446 0
447 1
448 0
449 1
450 0
451 -1
452 0
453 -1
454 0
455 1
456 0
457 1
458 0
459 0
460 0
461 -1
462 0
463 1
464 0
465 1
466 0
467 -1
468 0
469 -1
470 0
471 1
472 0
473 1
474 0
475 0
476 0
477 0
478 0
479 1
480 0
481 1
482 0
483 -1
484 0
485 -1
486 0
487 1
488 0
489 1
490 0
491 -1
492 0
493 -1
494 0
495 0
496 0
497 1
498 0
499 -1
500 0
501 -1
502 0
503 1
504 0
505 1
506 0
507 0
508 0
509 -1
510 0
511 1
512 0
513 0
514 0
515 -1
516 0
517 -1
518 0
519 1
520 0
521 1
522 0
523 -1
524 0
525 0
526 0
527 1
528 0
529 0
530 0
531 0
532 0
533 -1
534 0
535 1
536 0
537 1
538 0
539 0
540 0
541 -1
542 0
543 1
544 0
545 1
546 0
547 -1
548 0
549 0
550 0
551 1
552 0
553 1
554 0
555 -1
556 0
557 -1
558 0
559 1
560 0
561 1
562 0
563 -1
564 0
565 -1
566 0
567 0
568 0
569 1
570 0
571 -1
572 0
573 -1
574 0
575 0
576 0
577 1
578 0
579 -1
580 0
581 -1
582 0
583 1
584 0
585 0
586 0
587 -1
588 0
589 -1
590 0
591 1
592 0
593 1
594 0
595 -1
596 0
597 -1
598 0
599 1
600 0
601 1
602 0
603 0
604 0
605 0
606 0
607 1
608 0
609 1
610 0
611 -1
612 0
613 -1
614 0
615 1
616 0
617 1
618 0
619 -1
620 0
621 0
622 0
623 1
624 0
625 0
626 0
627 -1
628 0
629 -1
630 0
631 1
632 0
633 1
634 0
635 -1
636 0
637 0
638 0
639 0
640 0
641 1
642 0
643 -1
644 0
645 -1
646 0
647 1
648 0
649 1
650 0
651 -1
652 0
653 -1
654 0
655 1
656 0
657 0
658 0
659 -1
660 0
661 -1
662 0
663 1
664 0
665 1
666 0
667 -1
668 0
669 -1
670 0
671 1
672 0
673 1
674 0
675 0
676 0
677 -1
678 0
679 1
680 0
681 1
682 0
683 -1
684 0
685 -1
686 0
687 1
688 0
689 1
690 0
691 -1
692 0
693 0
694 0
695 1
696 0
697 1
698 0
699 -1
700 0
701 -1
702 0
703 1
704 0
705 1
706 0
707 -1
708 0
709 -1
710 0
711 0
712 0
713 1
714 0
715 -1
716 0
717 -1
718 0
719 1
720 0
721 1
722 0
723 -1
724 0
725 0
726 0
727 1
728 0
729 0
730 0
731 -1
732 0
733 -1
734 0
735 0
736 0
737 1
738 0
739 -1
740 0
741 -1
742 0
743 1
744 0
745 1
746 0
747 0
748 0
749 -1
750 0
751 1
752 0
753 1
754 0
755 -1
756 0
757 -1
758 0
759 1
760 0
761 1
762 0
763 -1
764 0
765 0
766 0
767 1
768 0
769 1
770 0
771 -1
772 0
773 -1
774 0
775 0
776 0
777 1
778 0
779 -1
780 0
781 -1
782 0
783 0
784 0
785 1
786 0
787 -1
788 0
789 -1
790 0
791 1
792 0
793 1
794 0
795 -1
796 0
797 -1
798 0
799 1
800 0
801 0
802 0
803 -1
804 0
805 -1
806 0
807 1
808 0
809 1
810 0
811 -1
812 0
813 -1
814 0
815 1
816 0
817 1
818 0
819 0
820 0
821 -1
822 0
823 1
824 0
825 0
826 0
827 -1
828 0
829 -1
830 0
831 1
832 0
833 0
834 0
835 -1
836 0
837 0
838 0
839 1
840 0
841 0
842 0
843 -1
844 0
845 0
846 0
847 0
848 0
849 1
850 0
851 -1
852 0
853 -1
854 0
855 0
856 0
857 1
858 0
859 -1
860 0
861 -1
862 0
863 1
864 0
865 1
866 0
867 0
868 0
869 -1
870 0
871 1
872 0
873 0
874 0
875 0
876 0
877 -1
878 0
879 1
880 0
881 1
882 0
883 -1
884 0
885 -1
886 0
887 1
888 0
889 1
890 0
891 0
892 0
893 -1
894 0
895 1
896 0
897 1
898 0
899 -1
900 0
901 -1
902 0
903 1
904 0
905 1
906 0
907 -1
908 0
909 0
910 0
911 1
912 0
913 1
914 0
915 -1
916 0
917 -1
918 0
919 1
920 0
921 1
922 0
923 -1
924 0
925 0
926 0
927 0
928 0
929 1
930 0
931 0
932 0
933 -1
934 0
935 1
936 0
937 1
938 0
939 -1
940 0
941 -1
942 0
943 1
944 0
945 0
946 0
947 -1
948 0
949 -1
950 0
951 1
952 0
953 1
954 0
955 -1
956 0
957 -1
958 0
959 1
960 0
961 0
962 0
963 0
964 0
965 -1
966 0
967 1
968 0
969 1
970 0
971 -1
972 0
973 -1
974 0
975 0
976 0
977 1
978 0
979 -1
980 0
981 0
982 0
983 1
984 0
985 1
986 0
987 -1
988 0
989 -1
990 0
991 1
992 0
993 1
994 0
995 -1
996 0
997 -1
998 0
999 0
1000 0
1001 1
1002 0
1003 -1
1004 0
1005 -1
1006 0
1007 1
1008 0
1009 1
1010 0
1011 -1
1012 0
1013 -1
1014 0
1015 1
1016 0
1017 0
1018 0
1019 -1
1020 0
1021 -1
1022 0
1023 1
1024 0
1025 0
1026 0
1027 -1
1028 0
1029 0
1030 0
1031 1
1032 0
1033 1
1034 0
1035 0
1036 0
1037 -1
1038 0
1039 1
1040 0
1041 1
1042 0
1043 -1
1044 0
1045 -1
1046 0
1047 1
1048 0
1049 1
1050 0
1051 -1
1052 0
1053 0
1054 0
1055 1
1056 0
1057 1
1058 0
1059 -1
1060 0
1061 -1
1062 0
1063 1
1064 0
1065 1
1066 0
1067 -1
1068 0
1069 -1
1070 0
1071 0
1072 0
1073 1
1074 0
1075 0
1076 0
1077 -1
1078 0
1079 1
1080 0
1081 1
1082 0
1083 0
1084 0
1085 -1
1086 0
1087 1
1088 0
1089 0
1090 0
1091 -1
1092 0
1093 -1
1094 0
1095 1
1096 0
1097 1
1098 0
1099 -1
1100 0
1101 -1
1102 0
1103 1
1104 0
1105 1
1106 0
1107 0
1108 0
1109 -1
1110 0
1111 1
1112 0
1113 1
1114 0
1115 -1
1116 0
1117 -1
1118 0
1119 1
1120 0
1121 1
1122 0
1123 -1
1124 0
1125 0
1126 0
1127 0
1128 0
1129 1
1130 0
1131 -1
1132 0
1133 -1
1134 0
1135 1
1136 0
1137 1
1138 0
1139 -1
1140 0
1141 -1
1142 0
1143 0
1144 0
1145 1
1146 0
1147 -1
1148 0
1149 -1
1150 0
1151 1
1152 0
1153 1
1154 0
1155 -1
1156 0
1157 -1
1158 0
1159 1
1160 0
1161 0
1162 0
1163 -1
1164 0
1165 -1
1166 0
1167 1
1168 0
1169 1
1170 0
1171 -1
1172 0
1173 -1
1174 0
1175 0
1176 0
1177 1
1178 0
1179 0
1180 0
1181 -1
1182 0
1183 0
1184 0
1185 1
1186 0
1187 -1
1188 0
1189 -1
1190 0
1191 1
1192 0
1193 1
1194 0
1195 -1
1196 0
1197 0
1198 0
1199 1
1200 0
1201 1
1202 0
1203 -1
1204 0
1205 -1
1206 0
1207 1
1208 0
1209 1
1210 0
1211 -1
1212 0
1213 -1
1214 0
1215 0
1216 0
1217 1
1218 0
1219 -1
1220 0
1221 -1
1222 0
1223 1
1224 0
1225 0
1226 0
1227 -1
1228 0
1229 -1
1230 0
1231 1
1232 0
1233 0
1234 0
1235 -1
1236 0
1237 -1
1238 0
1239 1
1240 0
1241 1
1242 0
1243 -1
1244 0
1245 -1
1246 0
1247 1
1248 0
1249 1
1250 0
1251 0
1252 0
1253 -1
1254 0
1255 1
1256 0
1257 1
1258 0
1259 -1
1260 0
1261 -1
1262 0
1263 1
1264 0
1265 1
1266 0
1267 -1
1268 0
1269 0
1270 0
1271 1
1272 0
1273 1
1274 0
1275 0
1276 0
1277 -1
1278 0
1279 1
1280 0
1281 1
1282 0
1283 -1
1284 0
1285 -1
1286 0
1287 0
1288 0
1289 1
1290 0
1291 -1
1292 0
1293 -1
1294 0
1295 1
1296 0
1297 1
1298 0
1299 -1
1300 0
1301 -1
1302 0
1303 1
1304 0
1305 0
1306 0
1307 -1
1308 0
1309 -1
1310 0
1311 1
1312 0
1313 1
1314 0
1315 -1
1316 0
1317 -1
1318 0
1319 1
1320 0
1321 1
1322 0
1323 0
1324 0
1325 0
1326 0
1327 1
1328 0
1329 1
1330 0
1331 0
1332 0
1333 -1
1334 0
1335 1
1336 0
1337 1
1338 0
1339 -1
1340 0
1341 0
1342 0
1343 1
1344 0
1345 1
1346 0
1347 -1
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1349 -1
1350 0
1351 1
1352 0
1353 1
1354 0
1355 -1
1356 0
1357 -1
1358 0
1359 0
1360 0
1361 1
1362 0
1363 -1
1364 0
1365 -1
1366 0
1367 1
1368 0
1369 0
1370 0
1371 -1
1372 0
1373 -1
1374 0
1375 0
1376 0
1377 0
1378 0
1379 -1
1380 0
1381 -1
1382 0
1383 1
1384 0
1385 1
1386 0
1387 -1
1388 0
1389 -1
1390 0
1391 1
1392 0
1393 1
1394 0
1395 0
1396 0
1397 -1
1398 0
1399 1
1400 0
1401 1
1402 0
1403 -1
1404 0
1405 -1
1406 0
1407 1
1408 0
1409 1
1410 0
1411 -1
1412 0
1413 0
1414 0
1415 1
1416 0
1417 1
1418 0
1419 -1
1420 0
1421 0
1422 0
1423 1
1424 0
1425 0
1426 0
1427 -1
1428 0
1429 -1
1430 0
1431 0
1432 0
1433 1
1434 0
1435 -1
1436 0
1437 -1
1438 0
1439 1
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1441 1
1442 0
1443 -1
1444 0
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1447 1
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1465 1
1466 0
1467 0
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1469 -1
1470 0
1471 1
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1477 -1
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1479 1
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1487 1
1488 0
1489 1
1490 0
1491 -1
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1501 -1
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1511 1
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1513 1
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1515 -1
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1520 0
1521 0
1522 0
1523 -1
1524 0
1525 0
1526 0
1527 1
1528 0
1529 1
1530 0
1531 -1
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1533 -1
1534 0
1535 1
1536 0
1537 1
1538 0
1539 0
1540 0
1541 -1
1542 0
1543 1
1544 0
1545 1
1546 0
1547 -1
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1549 -1
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1555 -1
1556 0
1557 0
1558 0
1559 1
1560 0
1561 1
1562 0
1563 -1
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1565 -1
1566 0
1567 1
1568 0
1569 1
1570 0
1571 -1
1572 0
1573 0
1574 0
1575 0
1576 0
1577 1
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1579 -1
1580 0
1581 -1
1582 0
1583 1
1584 0
1585 1
1586 0
1587 0
1588 0
1589 -1
1590 0
1591 1
1592 0
1593 0
1594 0
1595 -1
1596 0
1597 -1
1598 0
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1600 0
1601 1
1602 0
1603 -1
1604 0
1605 -1
1606 0
1607 1
1608 0
1609 1
1610 0
1611 0
1612 0
1613 -1
1614 0
1615 1
1616 0
1617 0
1618 0
1619 -1
1620 0
1621 -1
1622 0
1623 1
1624 0
1625 0
1626 0
1627 -1
1628 0
1629 0
1630 0
1631 1
1632 0
1633 1
1634 0
1635 -1
1636 0
1637 -1
1638 0
1639 1
1640 0
1641 1
1642 0
1643 -1
1644 0
1645 -1
1646 0
1647 0
1648 0
1649 1
1650 0
1651 -1
1652 0
1653 -1
1654 0
1655 1
1656 0
1657 1
1658 0
1659 -1
1660 0
1661 -1
1662 0
1663 1
1664 0
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1667 -1
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1669 -1
1670 0
1671 1
1672 0
1673 1
1674 0
1675 0
1676 0
1677 -1
1678 0
1679 1
1680 0
1681 0
1682 0
1683 0
1684 0
1685 -1
1686 0
1687 1
1688 0
1689 1
1690 0
1691 -1
1692 0
1693 -1
1694 0
1695 1
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