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A189661 as a simple table

na(n)
10
21
30
41
50
60
71
80
91
100
110
121
130
140
151
160
171
180
190
201
210
221
230
240
251
260
270
281
290
301
310
320
331
340
350
361
370
381
390
400
411
420
431
440
450
461
470
480
491
500
511
520
530
541
550
561
570
580
591
600
610
621
630
641
650
660
671
680
690
701
710
721
730
740
751
760
771
780
790
801
810
820
831
840
851
860
870
881
890
900
911
920
931
940
950
961
970
981
990
1000
1011
1020
1030
1041
1050
1061
1070
1080
1091
1100
1111
1120
1130
1141
1150
1160
1171
1180
1191
1200
1210
1221
1230
1240
1251
1260
1271
1280
1290
1301
1310
1321
1330
1340
1351
1360
1370
1381
1390
1401
1410
1420
1431
1440

[0,1,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,1,0,0,
 1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,1,0,0,1,0,0,1,
 0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,
 1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,1,0,
 0,1,0,0,1,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,0,
 1,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0]