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A266628 as a simple table

na(n)
00
12
21
35
44
54
65
77
810
96
1012
1111
1214
139
1414
1513
1619
1712
1821
1917
2026
2113
2222
2324
2429
2515
2635
2725
2825
2929
3031
3129
3237
3330
3436
3527
3646
3723
3852
3926
4049
4136
4247
4333
4461
4529
4657
4738
4859
4938
5058
5144
5266
5342
5466
5546
5669
5741
5866
5952
6073
6144
6285
6348
6488
6549
6683

[0,2,1,5,4,4,5,7,10,6,12,11,14,9,14,13,19,12,21,
 17,26,13,22,24,29,15,35,25,25,29,31,29,37,30,36,
 27,46,23,52,26,49,36,47,33,61,29,57,38,59,38,58,
 44,66,42,66,46,69,41,66,52,73,44,85,48,88,49,83]