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A037904 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
101
110
121
132
143
154
165
176
187
198
202
211
220
231
242
253
264
275
286
297
303
312
321
330
341
352
363
374
385
396
404
413
422
431
440
451
462
473
484
495
505
514
523
532
541
550
561
572
583
594
606
615
624
633
642
651
660
671
682
693
707
716
725
734
743
752
761
770
781
792
808
817
826
835
844
853
862
871
880
891
909

[0,0,0,0,0,0,0,0,0,1,0,1,2,3,4,5,6,7,8,2,1,0,1,2,
 3,4,5,6,7,3,2,1,0,1,2,3,4,5,6,4,3,2,1,0,1,2,3,4,5,
 5,4,3,2,1,0,1,2,3,4,6,5,4,3,2,1,0,1,2,3,7,6,5,4,3,
 2,1,0,1,2,8,7,6,5,4,3,2,1,0,1,9]