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A355217 as a simple table

n a(n)
1 1
2 1
3 1
4 -1
5 -19
6 -153
7 -1155
8 -9785
9 -183075
10 -25013497
11 -11301739395
12 -10911778097209
13 -21604455470794723
14 -86776403662147521913
15 -702894028759616525605187
16 -11441974451382622345470900921
17 -373552937787342469475481963377571

[1,1,1,-1,-19,-153,-1155,-9785,-183075,-25013497,
 -11301739395,-10911778097209,-21604455470794723,
 -86776403662147521913,-702894028759616525605187,
 -11441974451382622345470900921,
 -373552937787342469475481963377571]

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Last modified June 5 11:59 EDT 2024. Contains 373105 sequences. (Running on oeis4.)