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A037908 as a simple table

na(n)
10
20
30
40
51
60
71
80
90
100
111
120
131
140
150
160
171
180
191
200
210
220
231
240
251
262
271
281
291
301
310
321
330
340
351
362
371
382
391
400
410
421
430
441
450
460
470
481
490
500
511
520
530
540
552
561
572
581
591
600
611
620
631
640
651
661
672
681
692
700
710
720
731
740
750
761
770
780
790
801
810
821
830
840
851
862
871
882
891
900

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