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A013434 as a simple table

n a(n)
0 1
1 0
2 0
3 -10
4 -840
5 -87750
6 -12310100
7 -2287605450
8 -549013374000
9 -166031512396750
10 -61922192590147500
11 -27960041702488691250
12 -15045975711682274645000
13 -9519627048988069071093750

[1,0,0,-10,-840,-87750,-12310100,-2287605450,
 -549013374000,-166031512396750,-61922192590147500,
 -27960041702488691250,-15045975711682274645000,
 -9519627048988069071093750]

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Last modified January 19 05:41 EST 2022. Contains 350464 sequences. (Running on oeis4.)