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A054387 as a simple table

n a(n)
0 0
1 -2
2 1
3 1
4 1
5 5
6 7
7 7
8 33
9 429
10 715
11 2431
12 4199
13 29393
14 52003
15 185725
16 111435
17 1938969
18 17678835
19 21607465
20 119409675
21 883631595
22 109402007
23 6116566755
24 11435320455
25 57176602275
26 322476036831
27 1215486600363
28 2295919134019

[0,-2,1,1,1,5,7,7,33,429,715,2431,4199,29393,
 52003,185725,111435,1938969,17678835,21607465,
 119409675,883631595,109402007,6116566755,
 11435320455,57176602275,322476036831,
 1215486600363,2295919134019]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)