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A361561 as a simple table

na(n)
10
20
30
41
50
61
70
81
90
100
110
121
130
140
150
161
170
180
190
201
210
220
230
242
250
260
270
281
290
301
310
321
330
340
350
361
370
380
390
401
410
421
430
440
450
460
470
482
490
500
510
520
530
541
550
561
570
580
590
602
610
620
630
641
650
661
670
680
690
701
710
722
730
740
750
760
770
780
790
802
810
820
830
841
850
860
870
881
890
901
910
920
930
940
950
962
970
980
990
1001
1010
1020
1030
1041
1050

[0,0,0,1,0,1,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,2,
 0,0,0,1,0,1,0,1,0,0,0,1,0,0,0,1,0,1,0,0,0,0,0,2,0,
 0,0,0,0,1,0,1,0,0,0,2,0,0,0,1,0,1,0,0,0,1,0,2,0,0,
 0,0,0,0,0,2,0,0,0,1,0,0,0,1,0,1,0,0,0,0,0,2,0,0,0,
 1,0,0,0,1,0]