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A127670 as a simple table

n a(n)
1 1
2 4
3 32
4 400
5 6912
6 153664
7 4194304
8 136048896
9 5120000000
10 219503494144
11 10567230160896
12 564668382613504
13 33174037869887488
14 2125764000000000000
15 147573952589676412928
16 11034809241396899282944
17 884295678882933431599104

[1,4,32,400,6912,153664,4194304,136048896,
 5120000000,219503494144,10567230160896,
 564668382613504,33174037869887488,
 2125764000000000000,147573952589676412928,
 11034809241396899282944,884295678882933431599104]

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Last modified December 12 17:50 EST 2019. Contains 329960 sequences. (Running on oeis4.)