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A239108 as a simple table

n a(n)
0 1
1 2
2 19
3 253
4 3920
5 66221
6 1183077
7 21981764
8 420449439
9 8223704755
10 163727846678
11 3307039145618
12 67600147666909
13 1395822347989531
14 29070233296701815
15 609950649080323320
16 12881240945694949696
17 273590092192962485985
18 5840400740191969187922

[1,2,19,253,3920,66221,1183077,21981764,420449439,
 8223704755,163727846678,3307039145618,
 67600147666909,1395822347989531,29070233296701815,
 609950649080323320,12881240945694949696,
 273590092192962485985,5840400740191969187922]

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Last modified April 18 15:16 EDT 2024. Contains 371780 sequences. (Running on oeis4.)