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A020112 as a simple table

na(n)
01
11
21
32
46
525
6131
7843
86275
952989
10500443
115226842
1259818301
13744405516
1410008118595
15144561713038
162232675345795
1736715105686391
18640474621418149
1911813198572823623
20229701083360459335
214696111037591613053

[1,1,1,2,6,25,131,843,6275,52989,500443,5226842,
 59818301,744405516,10008118595,144561713038,
 2232675345795,36715105686391,640474621418149,
 11813198572823623,229701083360459335,
 4696111037591613053]