A006558
formatted as a simple table:
n
a(n)
1
1
2
2
3
33
4
242
5
11605
6
28374
7
171893
8
1043710445721
9
2197379769820
[1,2,33,242,11605,28374,171893,1043710445721, 2197379769820]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
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