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A221226 as a simple table

n a(n)
1 1
2 19
3 137
4 1033
5 7877
6 60223
7 460713
8 3524857
9 26968225
10 206327811
11 1578551849
12 12076946305
13 92396113725
14 706885768959
15 5408092980713
16 41375064828945
17 316543208763529
18 2421738125898019
19 18527690050695513
20 141747473284341977

[1,19,137,1033,7877,60223,460713,3524857,26968225,
 206327811,1578551849,12076946305,92396113725,
 706885768959,5408092980713,41375064828945,
 316543208763529,2421738125898019,
 18527690050695513,141747473284341977]

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Last modified March 18 22:50 EDT 2024. Contains 370951 sequences. (Running on oeis4.)