A018226
formatted as a simple table:
n
a(n)
1
2
2
8
3
20
4
28
5
50
6
82
7
126
[2,8,20,28,50,82,126]
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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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