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A139415 as a simple table

n a(n)
0 0
1 0
2 2
3 8
4 40
5 208
6 1408
7 12224
8 157312
9 3478528
10 147761664
11 12592434176
12 2112188653568
13 680441850810368
14 415073848421801984
15 476853486273606582272
16 1030736815796444156755968
17 4196432048875514376435007488
18 32243698461915435195120257335296

[0,0,2,8,40,208,1408,12224,157312,3478528,
 147761664,12592434176,2112188653568,
 680441850810368,415073848421801984,
 476853486273606582272,1030736815796444156755968,
 4196432048875514376435007488,
 32243698461915435195120257335296]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)