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A009377 as a simple table

n a(n)
0 0
1 2
2 -8
3 182
4 -6008
5 408122
6 -38757908
7 5438711462
8 -1008011932208
9 244100206825202
10 -74027819501268908
11 27620824218436349342
12 -12405602584546021488008
13 6609444480661620416243882

[0,2,-8,182,-6008,408122,-38757908,5438711462,
 -1008011932208,244100206825202,-74027819501268908,
 27620824218436349342,-12405602584546021488008,
 6609444480661620416243882]

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Last modified December 5 06:12 EST 2021. Contains 349532 sequences. (Running on oeis4.)