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A022075 as a simple table

n a(n)
0 1
1 0
2 44
3 0
4 924
5 0
6 12320
7 0
8 117084
9 0
10 844536
11 4194304
12 4812192
13 0
14 22297792
15 92274688
16 86075484
17 0
18 283367436
19 968884224
20 815677016
21 0
22 2108077536
23 6551502848
24 5012882336
25 0
26 11159625400
27 32619102208
28 23460347328
29 0
30 46790491968
31 129830486016
32 89096422492

[1,0,44,0,924,0,12320,0,117084,0,844536,4194304,
 4812192,0,22297792,92274688,86075484,0,283367436,
 968884224,815677016,0,2108077536,6551502848,
 5012882336,0,11159625400,32619102208,23460347328,
 0,46790491968,129830486016,89096422492]

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Last modified October 21 10:34 EDT 2021. Contains 348150 sequences. (Running on oeis4.)