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A012598 as a simple table

n a(n)
0 1
1 2
2 12
3 208
4 6608
5 438912
6 38672832
7 5956592640
8 1035058952448
9 288405058560000
10 83042522104507392
11 36519438671549890560
12 15719007594987094364160
13 10017433660808198506414080

[1,2,12,208,6608,438912,38672832,5956592640,
 1035058952448,288405058560000,83042522104507392,
 36519438671549890560,15719007594987094364160,
 10017433660808198506414080]

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Last modified October 30 06:31 EDT 2020. Contains 338077 sequences. (Running on oeis4.)