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A037891 as a simple table

na(n)
10
20
30
40
51
60
71
82
93
102
111
120
131
142
153
162
171
180
191
204
213
222
231
240
251
260
271
282
293
301
310
321
332
343
351
360
371
382
393
401
410
421
432
443
451
460
471
482
493
502
511
520
531
542
552
561
570
581
592
602
611
620
631
642
652
661
670
681
692
702
711
720
731
742
753
762
771
780
791
803
812
821
830
841
853
862
871
880
891
903

[0,0,0,0,1,0,1,2,3,2,1,0,1,2,3,2,1,0,1,4,3,2,1,0,
 1,0,1,2,3,1,0,1,2,3,1,0,1,2,3,1,0,1,2,3,1,0,1,2,3,
 2,1,0,1,2,2,1,0,1,2,2,1,0,1,2,2,1,0,1,2,2,1,0,1,2,
 3,2,1,0,1,3,2,1,0,1,3,2,1,0,1,3]