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A155952 as a simple table

n a(n)
0 2
1 4
2 4
3 48
4 48
5 728
6 232
7 232
8 728
9 20752
10 5312
11 1632
12 5312
13 20752
14 759132
15 168684
16 39864
17 39864
18 168684
19 759132
20 34016320
21 5788288
22 3904448
23 -2262272
24 3904448
25 5788288
26 34016320
27 1801010416
28 223429840
29 253864944
30 -64253360
31 -64253360

[2,4,4,48,48,728,232,232,728,20752,5312,1632,5312,
 20752,759132,168684,39864,39864,168684,759132,
 34016320,5788288,3904448,-2262272,3904448,5788288,
 34016320,1801010416,223429840,253864944,-64253360,
 -64253360]

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Last modified July 1 06:07 EDT 2022. Contains 354952 sequences. (Running on oeis4.)