A018497
formatted as a simple table:
n
a(n)
1
1
2
2
3
7
4
14
5
37
6
74
7
259
8
518
[1,2,7,14,37,74,259,518]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
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