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A140722
as a simple table
n
a(n)
1
1
2
2
3
8
4
61
5
957
6
31520
7
2199080
8
328002710
9
105370907181
[1,2,8,61,957,31520,2199080,328002710, 105370907181]
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Last modified August 21 15:15 EDT 2024. Contains 375353 sequences. (Running on oeis4.)
