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A012583 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 -12
5 60
6 -210
7 1260
8 -4368
9 -42336
10 833880
11 -9944880
12 109031208
13 -998835552
14 5256888000
15 57628902240
16 -2552409700608
17 53611141985664
18 -880205240332224
19 12318269451041664
20 -115115298914746752

[1,0,0,0,-12,60,-210,1260,-4368,-42336,833880,
 -9944880,109031208,-998835552,5256888000,
 57628902240,-2552409700608,53611141985664,
 -880205240332224,12318269451041664,
 -115115298914746752]

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Last modified September 5 05:06 EDT 2024. Contains 375686 sequences. (Running on oeis4.)