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A027639 as a simple table

n a(n)
0 4
1 32
2 3072
3 2752512
4 21139292160
5 1342091380654080
6 692647993190048071680
7 2882479558988139892026900480
8 96342151992701835341576224427212800
9 25811138467998276182105365247324712232550400

[4,32,3072,2752512,21139292160,1342091380654080,
 692647993190048071680,
 2882479558988139892026900480,
 96342151992701835341576224427212800,
 25811138467998276182105365247324712232550400]

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Last modified May 29 04:44 EDT 2022. Contains 354122 sequences. (Running on oeis4.)