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A007974
as a simple table
n
a(n)
3
1
4
6
5
52
6
389
7
2539
8
16604
9
105365
10
654030
11
3900116
[1,6,52,389,2539,16604,105365,654030,3900116]
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Last modified April 23 09:22 EDT 2024. Contains 371905 sequences. (Running on oeis4.)