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A027270 as a simple table

n a(n)
3 10
4 104
5 420
6 3786
7 14826
8 131264
9 510576
10 4508580
11 17523506
12 154773696
13 602175444
14 5323519838
15 20744201142
16 183586707648
17 716553432640
18 6348284151024
19 24816637181076
20 220081449149440
21 861581808936200
22 7647723960962932
23 29978812970646870
24 266322435212031984

[10,104,420,3786,14826,131264,510576,4508580,
 17523506,154773696,602175444,5323519838,
 20744201142,183586707648,716553432640,
 6348284151024,24816637181076,220081449149440,
 861581808936200,7647723960962932,
 29978812970646870,266322435212031984]

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Last modified May 13 18:08 EDT 2021. Contains 343865 sequences. (Running on oeis4.)