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A271766 as a simple table

n a(n)
6 1
7 0
8 0
9 0
10 0
11 0
12 10395
13 0
14 0
15 0
16 0
17 0
18 383563180
19 523783260
20 6547290750
21 3055402350
22 157964301495
23 14054850810
24 34828180582195
25 91670862398500
26 448593283888750
27 11612610774464700
28 7681370284312725
29 6594450798260325
30 179804372693675480751
31 11896760875264765500

[1,0,0,0,0,0,10395,0,0,0,0,0,383563180,523783260,
 6547290750,3055402350,157964301495,14054850810,
 34828180582195,91670862398500,448593283888750,
 11612610774464700,7681370284312725,
 6594450798260325,179804372693675480751,
 11896760875264765500]

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Last modified April 20 10:51 EDT 2024. Contains 371838 sequences. (Running on oeis4.)