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A201885 as a simple table

n a(n)
1 1
2 9
3 63
4 413
5 3293
6 25123
7 196811
8 1610765
9 13183301
10 109772649
11 924269015
12 7845330131
13 67157103399
14 578601709251
15 5012862231269
16 43640547493913
17 381459159995789
18 3345900096556721
19 29435197443234979
20 259612374333413841

[1,9,63,413,3293,25123,196811,1610765,13183301,
 109772649,924269015,7845330131,67157103399,
 578601709251,5012862231269,43640547493913,
 381459159995789,3345900096556721,
 29435197443234979,259612374333413841]

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Last modified February 1 17:02 EST 2023. Contains 359993 sequences. (Running on oeis4.)