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A012554 as a simple table

n a(n)
0 1
1 2
2 8
3 110
4 520
5 80458
6 -4654604
7 820778478
8 -157200016272
9 41164154565906
10 -13482969489167252
11 5454988601609663734
12 -2666562535164656750936
13 1549911678027846498248986
14 -1056435556882844258622185948
15 834565745980558555804948223614

[1,2,8,110,520,80458,-4654604,820778478,
 -157200016272,41164154565906,-13482969489167252,
 5454988601609663734,-2666562535164656750936,
 1549911678027846498248986,
 -1056435556882844258622185948,
 834565745980558555804948223614]

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Last modified November 30 08:36 EST 2022. Contains 358438 sequences. (Running on oeis4.)