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A266463
as a simple table
n
a(n)
1
2
2
4
3
12
4
66
5
735
6
18808
7
1231170
8
223521350
9
119000455681
10
193166954325425
11
983670413713595700
[2,4,12,66,735,18808,1231170,223521350, 119000455681,193166954325425,983670413713595700]
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Last modified September 8 07:09 EDT 2024. Contains 375751 sequences. (Running on oeis4.)
