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A087168 as a simple table

n a(n)
0 1
1 -1
2 -1
3 7
4 -17
5 23
6 -1
7 -89
8 271
9 -457
10 287
11 967
12 -4049
13 8279
14 -8641
15 -7193
16 56143
17 -139657
18 194399
19 -24569
20 -703889
21 2209943
22 -3814273
23 2603047
24 7447951
25 -32756041
26 68476319
27 -74404793
28 -50690897
29 449691863
30 -1146312001
31 1640168551
32 -335257649
33 -5554901257

[1,-1,-1,7,-17,23,-1,-89,271,-457,287,967,-4049,
 8279,-8641,-7193,56143,-139657,194399,-24569,
 -703889,2209943,-3814273,2603047,7447951,
 -32756041,68476319,-74404793,-50690897,449691863,
 -1146312001,1640168551,-335257649,-5554901257]

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Last modified April 25 10:43 EDT 2024. Contains 371967 sequences. (Running on oeis4.)