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A201950 as a simple table

n a(n)
0 1
1 0
2 2
3 6
4 28
5 160
6 1078
7 8358
8 73260
9 716112
10 7721844
11 91039740
12 1164932470
13 16077368580
14 238037983558
15 3763371442530
16 63276351409092
17 1127406030014112
18 21218146474666864
19 420611921077524912
20 8759617763834095796
21 191208185756772875880

[1,0,2,6,28,160,1078,8358,73260,716112,7721844,
 91039740,1164932470,16077368580,238037983558,
 3763371442530,63276351409092,1127406030014112,
 21218146474666864,420611921077524912,
 8759617763834095796,191208185756772875880]

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Last modified September 12 12:03 EDT 2024. Contains 375851 sequences. (Running on oeis4.)