A128030
formatted as a simple table:
n
a(n)
1
2
2
3
3
31
4
467
5
1747
[2,3,31,467,1747]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
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