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A052309 as a simple table

n a(n)
1 1
2 -1
3 0
4 1
5 0
6 -1
7 -1
8 0
9 4
10 8
11 2
12 -34
13 -108
14 -160
15 189
16 2363
17 8032
18 12277
19 -30155
20 -347952
21 -1464609
22 -3099733
23 4975748
24 96347901
25 539113345
26 1751884290
27 714138346
28 -40349734815
29 -334283308597
30 -1643012627964
31 -4159491453450

[1,-1,0,1,0,-1,-1,0,4,8,2,-34,-108,-160,189,2363,
 8032,12277,-30155,-347952,-1464609,-3099733,
 4975748,96347901,539113345,1751884290,714138346,
 -40349734815,-334283308597,-1643012627964,
 -4159491453450]

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Last modified June 6 16:10 EDT 2024. Contains 373133 sequences. (Running on oeis4.)