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A055762 as a simple table

n a(n)
0 1
1 0
2 0
3 8
4 126
5 0
6 0
7 31680
8 129492
9 0
10 0
11 3684312
12 9181784
13 0
14 0
15 95595072
16 188204958
17 0
18 0
19 1143217944
20 1959861960
21 0
22 0
23 8506517184
24 13292577672
25 0
26 0
27 45761541536
28 67074486336
29 0
30 0
31 195392621952
32 272568215700
33 0
34 0

[1,0,0,8,126,0,0,31680,129492,0,0,3684312,9181784,
 0,0,95595072,188204958,0,0,1143217944,1959861960,
 0,0,8506517184,13292577672,0,0,45761541536,
 67074486336,0,0,195392621952,272568215700,0,0]

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Last modified May 18 12:22 EDT 2022. Contains 353807 sequences. (Running on oeis4.)