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A005615 as a simple table

n a(n)
0 2
1 2
2 8
3 72
4 1152
5 26304
6 773376
7 27792384
8 1180606464
9 57878949888
10 3216287711232
11 199772566437888
12 13715535726379008
13 1031385107381354496
14 84305991898648018944
15 7442748678347943837696
16 705753951277588515127296
17 71539473538360558749745152

[2,2,8,72,1152,26304,773376,27792384,1180606464,
 57878949888,3216287711232,199772566437888,
 13715535726379008,1031385107381354496,
 84305991898648018944,7442748678347943837696,
 705753951277588515127296,
 71539473538360558749745152]

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Last modified June 18 18:17 EDT 2021. Contains 345120 sequences. (Running on oeis4.)