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A289088 as a simple table

n a(n)
0 2
1 0
2 0
3 -4
4 -32
5 -176
6 -832
7 -3104
8 512
9 211200
10 3425280
11 40761856
12 395890688
13 2742339584
14 -1576804352
15 -553831911424
16 -14161881202688
17 -259252051968000
18 -3761903248343040
19 -37698142004445184
20 44198204416196608
21 15672885673387884544
22 545945384701738876928

[2,0,0,-4,-32,-176,-832,-3104,512,211200,3425280,
 40761856,395890688,2742339584,-1576804352,
 -553831911424,-14161881202688,-259252051968000,
 -3761903248343040,-37698142004445184,
 44198204416196608,15672885673387884544,
 545945384701738876928]

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)