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A012194 as a simple table

n a(n)
0 1
1 1
2 1
3 0
4 -3
5 4
6 69
7 136
8 -1159
9 1744
10 115081
11 652864
12 -3250827
13 16365504
14 1156388557
15 12624963456
16 -12628752143
17 910310355200
18 42394317198097
19 735663001262080
20 2830775181039853
21 125940707707991040

[1,1,1,0,-3,4,69,136,-1159,1744,115081,652864,
 -3250827,16365504,1156388557,12624963456,
 -12628752143,910310355200,42394317198097,
 735663001262080,2830775181039853,
 125940707707991040]

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Last modified January 29 04:07 EST 2023. Contains 359915 sequences. (Running on oeis4.)