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A288869 as a simple table

n a(n)
0 1
1 -1
2 4
3 -21
4 136
5 -1045
6 9276
7 -93289
8 1047376
9 -12975561
10 175721140
11 -2581284541
12 40864292184
13 -693347907421
14 12548540320876
15 -241253367679185
16 4909234733857696
17 -105394372192969489
18 2380337795595885156

[1,-1,4,-21,136,-1045,9276,-93289,1047376,
 -12975561,175721140,-2581284541,40864292184,
 -693347907421,12548540320876,-241253367679185,
 4909234733857696,-105394372192969489,
 2380337795595885156]

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Last modified September 22 17:26 EDT 2021. Contains 347607 sequences. (Running on oeis4.)