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A070606 as a simple table

na(n)
00
11
210
31
412
51
610
721
810
91
1010
1111
1212
1321
1412
151
1612
1721
1810
1921
2012
2121
220
231
2410
251
2612
271
2810
2921
3010
311
3210
3311
3412
3521
3612
371
3812
3921
4010
4121
4212
4321
440
451
4610
471
4812
491
5010
5121
5210
531
5410
5511
5612
5721
5812
591
6012
6121
6210
6321
6412
6521
660
671
6810
691
7012
711
7210
7321
7410
751

[0,1,10,1,12,1,10,21,10,1,10,11,12,21,12,1,12,21,
 10,21,12,21,0,1,10,1,12,1,10,21,10,1,10,11,12,21,
 12,1,12,21,10,21,12,21,0,1,10,1,12,1,10,21,10,1,
 10,11,12,21,12,1,12,21,10,21,12,21,0,1,10,1,12,1,
 10,21,10,1]