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A309775 as a simple table

n a(n)
0 1
1 -1
2 -1
3 3
4 7
5 -13
6 -89
7 -45
8 1191
9 4723
10 -6873
11 -143597
12 -499289
13 1843891
14 28132391
15 104223059
16 -508838745
17 -8597456141
18 -39770287321
19 158845792147
20 3788893515687
21 23979078221619
22 -38626203043289
23 -2200108609291821
24 -19878849864738137
25 -27269435066568845

[1,-1,-1,3,7,-13,-89,-45,1191,4723,-6873,-143597,
 -499289,1843891,28132391,104223059,-508838745,
 -8597456141,-39770287321,158845792147,
 3788893515687,23979078221619,-38626203043289,
 -2200108609291821,-19878849864738137,
 -27269435066568845]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)