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A100397 as a simple table

n a(n)
0 1
1 1
2 0
3 0
4 0
5 2
6 10
7 44
8 190
9 856
10 4106
11 21092
12 115886
13 678426
14 4213364
15 27644060
16 190898712
17 1382957558
18 10480140550
19 82864867220
20 682076801978
21 5832742198292
22 51724158224426
23 474869816139040
24 4506715738418666

[1,1,0,0,0,2,10,44,190,856,4106,21092,115886,
 678426,4213364,27644060,190898712,1382957558,
 10480140550,82864867220,682076801978,
 5832742198292,51724158224426,474869816139040,
 4506715738418666]

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Last modified May 9 15:13 EDT 2024. Contains 372352 sequences. (Running on oeis4.)