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A232991 as a simple table

na(n)
01
10
20
30
41
50
61
70
80
90
101
110
121
130
140
150
161
170
181
190
200
210
221
230
241
250
260
270
281
290
301
310
320
330
341
350
361
370
380
390
401
410
421
430
440
450
461
470
481
490
500
510
521
530
541
550
560
570
581
590
601
610
620
630
641
650
661
670
680
690
701
710
721
730
740
750
761
770
781
790
800
810
821
830
841
850
860
870
881
890
901
910
920
930
941
950
961
970
980
990
1001
1010
1021
1030
1040
1050
1061

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