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A012652 as a simple table

n a(n)
0 0
1 0
2 2
3 -3
4 0
5 -10
6 400
7 -3276
8 12768
9 -72864
10 1933888
11 -32108560
12 322393280
13 -3122225184
14 60417280768
15 -1349906937120
16 23068109840384
17 -351887538631168
18 6985288388898816
19 -174933529672527360

[0,0,2,-3,0,-10,400,-3276,12768,-72864,1933888,
 -32108560,322393280,-3122225184,60417280768,
 -1349906937120,23068109840384,-351887538631168,
 6985288388898816,-174933529672527360]

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)