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A156424 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 66178
5 0
6 0
7 0
8 7777280
9 0
10 0
11 0
12 73938288
13 0
14 0
15 0
16 1262896895
17 89959563
18 0
19 0
20 5559809528
21 0
22 0
23 0
24 30866580416
25 991288522
26 0
27 0

[1,0,0,0,66178,0,0,0,7777280,0,0,0,73938288,0,0,0,
 1262896895,89959563,0,0,5559809528,0,0,0,
 30866580416,991288522,0,0]

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Last modified July 21 09:38 EDT 2024. Contains 374472 sequences. (Running on oeis4.)