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A156990 as a simple table

n a(n)
0 1
1 -3
2 -154
3 2799
4 119966
5 -1820523
6 -228588514
7 19431351543
8 810907657406
9 -22157451384093
10 -4621797534474274
11 308703302719636269
12 38633760912291144446
13 -1524818738952570521463
14 -445265304377466491198434
15 162221347544931591665536791
16 6767221511370936096386145086

[1,-3,-154,2799,119966,-1820523,-228588514,
 19431351543,810907657406,-22157451384093,
 -4621797534474274,308703302719636269,
 38633760912291144446,-1524818738952570521463,
 -445265304377466491198434,
 162221347544931591665536791,
 6767221511370936096386145086]

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Last modified January 22 12:12 EST 2022. Contains 350481 sequences. (Running on oeis4.)