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A000260 as a simple table

na(n)
01
11
23
313
468
5399
62530
716965
8118668
9857956
106369883
1148336171
12373537388
132931682810
1423317105140
15187606350645
161524813969276
1712504654858828
18103367824774012
19860593023907540
207211115497448720
2160776550501588855

[1,1,3,13,68,399,2530,16965,118668,857956,6369883,
 48336171,373537388,2931682810,23317105140,
 187606350645,1524813969276,12504654858828,
 103367824774012,860593023907540,7211115497448720,
 60776550501588855]