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A006997 as a simple table

na(n)
00
10
21
30
40
51
61
72
82
90
100
111
120
130
141
151
162
172
181
192
202
213
223
234
243
253
264
270
280
291
300
310
321
331
342
352
360
370
381
390
400
411
421
432
442
451
462
472
483
493
504
513
523
534
541
552
562
573
583
594
603
613
624
634
645
655
664
675
685
696
706
717

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