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A283012 as a simple table

n a(n)
0 1
1 0
2 4
3 0
4 20
5 0
6 84
7 0
8 372
9 64
10 1044
11 896
12 4724
13 64
14 24084
15 6528
16 65652
17 56896
18 268308
19 198528
20 1107572
21 819264
22 4218388
23 3283328
24 16842868
25 16309824
26 82057236
27 8587136
28 342943348
29 38568000
30 1409310228
31 200415616
32 5700124788
33 590929472
34 21745637396

[1,0,4,0,20,0,84,0,372,64,1044,896,4724,64,24084,
 6528,65652,56896,268308,198528,1107572,819264,
 4218388,3283328,16842868,16309824,82057236,
 8587136,342943348,38568000,1409310228,200415616,
 5700124788,590929472,21745637396]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)