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A004420 as a simple table

n a(n)
0 1
1 -38
2 760
3 -10640
4 117002
5 -1075248
6 8582224
7 -61061440
8 394559320
9 -2348001494
10 13008061200
11 -67666510320
12 332809029680
13 -1556541579760
14 6955832361824
15 -29820933412800
16 123079426294922
17 -490508040685920

[1,-38,760,-10640,117002,-1075248,8582224,
 -61061440,394559320,-2348001494,13008061200,
 -67666510320,332809029680,-1556541579760,
 6955832361824,-29820933412800,123079426294922,
 -490508040685920]

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Last modified September 23 04:19 EDT 2021. Contains 347609 sequences. (Running on oeis4.)