A097685
formatted as a simple table:
n
a(n)
1
2
2
5
3
6
4
8
5
17
6
50
7
684
8
720
9
1452
10
1679
11
3146
[2,5,6,8,17,50,684,720,1452,1679,3146]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 20 16:54 EST 2009. Contains 171081 sequences.
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