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A294258 as a simple table

n a(n)
0 1
1 -1
2 -1
3 5
4 1
5 79
6 31
7 -2059
8 -68095
9 129599
10 5586751
11 36420229
12 -159700991
13 -6256012465
14 -94786800289
15 -3320395014091
16 74018996229121
17 1093450523140351
18 -4548151329265025
19 -222875601233847931
20 -7118941159301980159
21 -60758029090422335281

[1,-1,-1,5,1,79,31,-2059,-68095,129599,5586751,
 36420229,-159700991,-6256012465,-94786800289,
 -3320395014091,74018996229121,1093450523140351,
 -4548151329265025,-222875601233847931,
 -7118941159301980159,-60758029090422335281]

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Last modified March 3 11:30 EST 2024. Contains 370511 sequences. (Running on oeis4.)