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A188187 as a simple table

na(n)
10
20
30
40
51
60
70
80
91
100
110
120
131
140
150
160
171
180
190
200
210
221
230
240
250
261
270
280
290
301
310
320
330
341
350
360
370
380
391
400
410
420
431
440
450
460
471
480
490
500
511
520
530
540
550
561
570
580
590
601
610
620
630
641
650
660
670
681
690
700
710
720
731
740
750
760
771
780
790
800
811
820
830
840
851
860
870
880
891
900
910
920
930
941
950
960
970
981
990
1000
1010
1021
1030
1040
1050
1061
1070
1080
1090
1100
1111
1120
1130
1140
1151
1160
1170
1180
1191
1200
1210
1220
1231
1240
1250
1260
1270
1281
1290
1300
1310
1321
1330
1340
1350
1361
1370
1380
1390
1401
1410
1420
1430
1440
1451
1460
1470
1480
1491

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