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A091788 as a simple table

n a(n)
1 1
2 2
3 2
4 4
5 16
6 96
7 5184
8 829440
9 1911029760
10 13002646487040
11 10065920762063093760
12 9319918463639717615448883200
13 137422208150223932126848386360776224407552000

[1,2,2,4,16,96,5184,829440,1911029760,
 13002646487040,10065920762063093760,
 9319918463639717615448883200,
 137422208150223932126848386360776224407552000]

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Last modified September 3 23:03 EDT 2024. Contains 375679 sequences. (Running on oeis4.)