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A141121 as a simple table

n a(n)
1 1
2 6
3 -180
4 8640
5 -498960
6 31434480
7 -2055943296
8 135216506304
9 -8720972739072
10 538646016002688
11 -31024094144060160
12 1609593032459782656
13 -71392972690228672512
14 2461961564459510280192
15 -51302015299696881770496
16 -415041229811424576835584

[1,6,-180,8640,-498960,31434480,-2055943296,
 135216506304,-8720972739072,538646016002688,
 -31024094144060160,1609593032459782656,
 -71392972690228672512,2461961564459510280192,
 -51302015299696881770496,
 -415041229811424576835584]

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Last modified March 28 10:31 EDT 2024. Contains 371240 sequences. (Running on oeis4.)