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A019060 as a simple table

n a(n)
2 2
3 4
4 32
5 180
6 1152
7 6636
8 40384
9 266964
10 1800360
11 12127016
12 82960512
13 576835428
14 4054304072
15 28728093520
16 205123982848

[2,4,32,180,1152,6636,40384,266964,1800360,
 12127016,82960512,576835428,4054304072,
 28728093520,205123982848]

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Last modified September 21 21:03 EDT 2023. Contains 365503 sequences. (Running on oeis4.)