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A068461 as a simple table

na(n)
12
20
32
41
52
64
73
83
91
102
114
120
133
1413
151
1612
1712
1813
191
2016
2116
220
2316
2412
2510
269
271
2823
293
3022
310
3228
3311
3414
3523
3616
370
3814
396
401
411
4214
434
4425
4543
460
4729
4810
4941
5019
5147
5214
530
5451
5510
5647
5737
5845
5946
6056
6157
6245
6310
6432
6561
6615
679
6867
695
709
7122
7225
7365
7456
7524
7612
7771
789
7957

[2,0,2,1,2,4,3,3,1,2,4,0,3,13,1,12,12,13,1,16,16,
 0,16,12,10,9,1,23,3,22,0,28,11,14,23,16,0,14,6,1,
 1,14,4,25,43,0,29,10,41,19,47,14,0,51,10,47,37,45,
 46,56,57,45,10,32,61,15,9,67,5,9,22,25,65,56,24,
 12,71,9,57]