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A293116 as a simple table

n a(n)
0 1
1 -1
2 -1
3 -1
4 1
5 19
6 151
7 1091
8 7841
9 56519
10 396271
11 2442439
12 7701409
13 -145269541
14 -4833158329
15 -104056218421
16 -2002667085119
17 -37109187217649
18 -679877731030049
19 -12440309297451121
20 -227773259993414719
21 -4155839606711748061
22 -74724654677947488521

[1,-1,-1,-1,1,19,151,1091,7841,56519,396271,
 2442439,7701409,-145269541,-4833158329,
 -104056218421,-2002667085119,-37109187217649,
 -679877731030049,-12440309297451121,
 -227773259993414719,-4155839606711748061,
 -74724654677947488521]

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)