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A015113 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 -4
5 1
6 1
7 21
8 21
9 1
10 1
11 -104
12 546
13 -104
14 1
15 1
16 521
17 13546
18 13546
19 521
20 1
21 1
22 -2604
23 339171
24 -1679704
25 339171
26 -2604
27 1
28 1
29 13021
30 8476671
31 210302171
32 210302171
33 8476671
34 13021
35 1
36 1
37 -65104
38 211929796
39 -26279294704
40 131649159046

[1,1,1,1,-4,1,1,21,21,1,1,-104,546,-104,1,1,521,
 13546,13546,521,1,1,-2604,339171,-1679704,339171,
 -2604,1,1,13021,8476671,210302171,210302171,
 8476671,13021,1,1,-65104,211929796,-26279294704,
 131649159046]

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Last modified January 21 05:39 EST 2020. Contains 331104 sequences. (Running on oeis4.)