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A239696 as a simple table

n a(n)
1 2
2 6
3 66
4 858
5 6006
6 204204
7 10444434
8 208888680
9 6172882716
10 231645546132
11 49795711759794
12 2400532020354468
13 477566276048801940
14 24333607174192936620

[2,6,66,858,6006,204204,10444434,208888680,
 6172882716,231645546132,49795711759794,
 2400532020354468,477566276048801940,
 24333607174192936620]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)