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A220974 as a simple table

n a(n)
1 16
2 58
3 1455
4 12033
5 106532
6 1053857
7 9937412
8 94991698
9 904380131
10 8640101337
11 82527129747
12 787761470885
13 7522086831839
14 71824911596695
15 685790071632157
16 6548065120089307
17 62522495845098510
18 596978457453884808

[16,58,1455,12033,106532,1053857,9937412,94991698,
 904380131,8640101337,82527129747,787761470885,
 7522086831839,71824911596695,685790071632157,
 6548065120089307,62522495845098510,
 596978457453884808]

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Last modified November 30 05:00 EST 2021. Contains 349418 sequences. (Running on oeis4.)