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A012563 as a simple table

n a(n)
0 1
1 0
2 12
3 -120
4 8400
5 -600000
6 73313856
7 -12123226752
8 2695239655680
9 -769790431168512
10 275082505104161792
11 -120207067043213252608
12 63066575428691877122048
13 -39120958138480154972405760

[1,0,12,-120,8400,-600000,73313856,-12123226752,
 2695239655680,-769790431168512,275082505104161792,
 -120207067043213252608,63066575428691877122048,
 -39120958138480154972405760]

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Last modified March 29 03:41 EDT 2024. Contains 371264 sequences. (Running on oeis4.)