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A009614 as a simple table

n a(n)
0 0
1 1
2 -1
3 1
4 0
5 -14
6 150
7 -1154
8 6272
9 -10016
10 -305280
11 5160376
12 -49699056
13 248457496
14 1844013080
15 -69019386344
16 1062420810240
17 -9790634309504
18 3214679190912
19 2104758733135744
20 -52208434879690240
21 764746718991861376

[0,1,-1,1,0,-14,150,-1154,6272,-10016,-305280,
 5160376,-49699056,248457496,1844013080,
 -69019386344,1062420810240,-9790634309504,
 3214679190912,2104758733135744,-52208434879690240,
 764746718991861376]

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Last modified June 16 14:12 EDT 2024. Contains 373430 sequences. (Running on oeis4.)