A137020
formatted as a simple table:
n
a(n)
1
1
2
9
3
11
4
91
5
911
[1,9,11,91,911]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 11 12:57 EST 2009. Contains 170656 sequences.
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