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A156425 as a simple table

n a(n)
0 1
1 1680
2 0
3 0
4 320743643010
5 10058239033920
6 0
7 0
8 16657062087640520
9 62993444371397120
10 0
11 0

[1,1680,0,0,320743643010,10058239033920,0,0,
 16657062087640520,62993444371397120,0,0]

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Last modified July 20 20:50 EDT 2024. Contains 374459 sequences. (Running on oeis4.)