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A279327 as a simple table

n a(n)
1 0
2 0
3 0
4 2
5 0
6 2
7 4
8 16
9 16
10 4
11 14
12 152
13 664
14 152
15 14
16 40
17 1536
18 16092
19 16092
20 1536
21 40
22 120
23 13776
24 384180
25 1079496
26 384180
27 13776
28 120
29 352
30 118664
31 8854880
32 73482624
33 73482624
34 8854880
35 118664
36 352
37 1032
38 991616
39 198179722
40 4808164964

[0,0,0,2,0,2,4,16,16,4,14,152,664,152,14,40,1536,
 16092,16092,1536,40,120,13776,384180,1079496,
 384180,13776,120,352,118664,8854880,73482624,
 73482624,8854880,118664,352,1032,991616,198179722,
 4808164964]

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Last modified October 25 07:16 EDT 2021. Contains 348239 sequences. (Running on oeis4.)