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A137274 as a simple table

n a(n)
0 0
1 2
2 -24
3 900
4 -80640
5 14288400
6 -4400827200
7 2156641086600
8 -1577763611424000
9 1642267210487904000
10 -2342289079736686080000
11 4440975210468688551660000
12 -10917777323646285908175360000
13 34083310964641049282713542000000
14 -132737301192061195797209453611200000

[0,2,-24,900,-80640,14288400,-4400827200,
 2156641086600,-1577763611424000,
 1642267210487904000,-2342289079736686080000,
 4440975210468688551660000,
 -10917777323646285908175360000,
 34083310964641049282713542000000,
 -132737301192061195797209453611200000]

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Last modified May 27 03:56 EDT 2024. Contains 372847 sequences. (Running on oeis4.)