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A091736 as a simple table

n a(n)
0 1
1 -1
2 1
3 -1
4 1
5 -25
6 7
7 -11
8 5
9 -4001
10 107
11 -6721
12 187
13 -2048761
14 44143
15 -3951137
16 43663
17 -2300524417
18 2591885
19 -107137061
20 5512427
21 -4571262603161
22 81607991
23 -10073849103649
24 136193843

[1,-1,1,-1,1,-25,7,-11,5,-4001,107,-6721,187,
 -2048761,44143,-3951137,43663,-2300524417,2591885,
 -107137061,5512427,-4571262603161,81607991,
 -10073849103649,136193843]

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Last modified May 25 01:59 EDT 2022. Contains 354047 sequences. (Running on oeis4.)