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A055997 as a simple table

n a(n)
1 1
2 2
3 9
4 50
5 289
6 1682
7 9801
8 57122
9 332929
10 1940450
11 11309769
12 65918162
13 384199201
14 2239277042
15 13051463049
16 76069501250
17 443365544449
18 2584123765442
19 15061377048201
20 87784138523762
21 511643454094369
22 2982076586042450
23 17380816062160329
24 101302819786919522

[1,2,9,50,289,1682,9801,57122,332929,1940450,
 11309769,65918162,384199201,2239277042,
 13051463049,76069501250,443365544449,
 2584123765442,15061377048201,87784138523762,
 511643454094369,2982076586042450,
 17380816062160329,101302819786919522]

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Last modified March 29 05:48 EDT 2024. Contains 371265 sequences. (Running on oeis4.)