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A219581 as a simple table

n a(n)
1 20
2 181
3 2234
4 18564
5 140884
6 1052190
7 7579137
8 51585784
9 331270888
10 2024909124
11 11885134942
12 67329174131
13 369027185265
14 1959956349517
15 10103702621330
16 50645615019582
17 247273236084923
18 1177685989979054
19 5478135751536604

[20,181,2234,18564,140884,1052190,7579137,
 51585784,331270888,2024909124,11885134942,
 67329174131,369027185265,1959956349517,
 10103702621330,50645615019582,247273236084923,
 1177685989979054,5478135751536604]

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Last modified January 23 06:38 EST 2022. Contains 350504 sequences. (Running on oeis4.)