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A257212 as a simple table

na(n)
01
11
21
32
42
52
62
72
83
92
103
113
123
133
143
154
163
173
184
194
203
214
224
234
245
254
264
274
285
295
304
314
325
335
345
354
365
375
385
395
406
416
425
435
445
456
466
476
485
495
506
516
526
536
545
557
566
576
586
596
607
617
627
636
646
656
667
677
687
697
706
716
727
737
747
757
767
776
788
798
807
817
827
837
848
858
868

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