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A306941 as a simple table

n a(n)
0 1
1 8
2 36
3 120
4 330
5 792
6 1716
7 3432
8 6434
9 11424
10 19312
11 31008
12 46512
13 62016
14 62016
15 0
16 -245156
17 -961376
18 -2787760
19 -7065760
20 -16478280
21 -36159840
22 -75522960
23 -151045920
24 -290021896
25 -534308096
26 -940325760
27 -1564496128
28 -2406819200
29 -3249142272
30 -3249142272

[1,8,36,120,330,792,1716,3432,6434,11424,19312,
 31008,46512,62016,62016,0,-245156,-961376,
 -2787760,-7065760,-16478280,-36159840,-75522960,
 -151045920,-290021896,-534308096,-940325760,
 -1564496128,-2406819200,-3249142272,-3249142272]

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Last modified August 30 23:33 EDT 2024. Contains 375550 sequences. (Running on oeis4.)