A136999
formatted as a simple table:
n
a(n)
1
1
2
2
3
11
4
12
5
21
6
22
7
122
8
221
9
1488
10
11141
[1,2,11,12,21,22,122,221,1488,11141]
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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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