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A261478 as a simple table

na(n)
01
11
21
31
41
51
68
729
8106
9491
102449
1112860
1272488
13435241
142763053
1518485280
16129916333
17956237591
187351602714
1958897588844
20490680801682
214242904633903
2238014082900386
23352341757997443
243373662297796822
2533326335447469262
26339232538360853201

[1,1,1,1,1,1,8,29,106,491,2449,12860,72488,435241,
 2763053,18485280,129916333,956237591,7351602714,
 58897588844,490680801682,4242904633903,
 38014082900386,352341757997443,3373662297796822,
 33326335447469262,339232538360853201]