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A009740 as a simple table

n a(n)
0 0
1 2
2 0
3 88
4 704
5 50464
6 2089216
7 173223040
8 16120801280
9 2032098365952
10 311227464130560
11 58380271774087168
12 13053338796582584320
13 3439281363674203889664
14 1053729213379599495528448 

[0,2,0,88,704,50464,2089216,173223040,16120801280,
 2032098365952,311227464130560,58380271774087168,
 13053338796582584320,3439281363674203889664,
 1053729213379599495528448]

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Last modified July 15 11:27 EDT 2024. Contains 374332 sequences. (Running on oeis4.)