A089393
formatted as a simple table:
n
a(n)
1
2
2
11
3
101
4
2221
5
20261
6
220021
7
2000221
8
20266681
9
228440489
[2,11,101,2221,20261,220021,2000221,20266681, 228440489]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 14:50 EST 2009. Contains 167570 sequences.
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