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A055787 as a simple table

n a(n)
0 0
1 4
2 80
3 1408
4 23808
5 395264
6 6496256
7 106102784
8 1725759488
9 27987017728
10 452890460160
11 7316694892544
12 118053383700480
13 1902813588226048
14 30644438111879168
15 493182667873845248
16 7932561728196313088
17 127528427796392050688
18 2049363966872621416448

[0,4,80,1408,23808,395264,6496256,106102784,
 1725759488,27987017728,452890460160,7316694892544,
 118053383700480,1902813588226048,
 30644438111879168,493182667873845248,
 7932561728196313088,127528427796392050688,
 2049363966872621416448]

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Last modified May 8 11:12 EDT 2024. Contains 372332 sequences. (Running on oeis4.)