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A280796 as a simple table

n a(n)
0 1
1 -1
2 -1
3 -13
4 -367
5 -18549
6 -1465953
7 -166262441
8 -25526158559
9 -5088504559209
10 -1277203721141441
11 -394351281523218693
12 -147069662568684159055
13 -65255038602423680990301
14 -33992871584988519888865825
15 -20539580068386370855911967393
16 -14240009948449682448965044873663
17 -11224227759618581623496389602591953
18 -9984932631658989030110444663072663937
19 -9963529315662216629464111409263738683133

[1,-1,-1,-13,-367,-18549,-1465953,-166262441,
 -25526158559,-5088504559209,-1277203721141441,
 -394351281523218693,-147069662568684159055,
 -65255038602423680990301,
 -33992871584988519888865825,
 -20539580068386370855911967393,
 -14240009948449682448965044873663,
 -11224227759618581623496389602591953,
 -9984932631658989030110444663072663937,
 -9963529315662216629464111409263738683133]

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Last modified April 25 13:12 EDT 2024. Contains 371969 sequences. (Running on oeis4.)