A070028
formatted as a simple table:
n
a(n)
1
2
2
3
3
5
4
7
5
11
6
113
7
131
8
311
9
11111111111111111111111
[2,3,5,7,11,113,131,311,11111111111111111111111]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
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