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A081569 as a simple table

n a(n)
0 1
1 5
2 26
3 139
4 757
5 4172
6 23165
7 129217
8 722818
9 4050239
10 22718609
11 127512940
12 715962889
13 4020920141
14 22584986378
15 126867394723
16 712691811325
17 4003745802188
18 22492567804517
19 126361939999081
20 709898671705906

[1,5,26,139,757,4172,23165,129217,722818,4050239,
 22718609,127512940,715962889,4020920141,
 22584986378,126867394723,712691811325,
 4003745802188,22492567804517,126361939999081,
 709898671705906]

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Last modified March 29 05:16 EDT 2024. Contains 371264 sequences. (Running on oeis4.)