A136305
formatted as a simple table:
n
a(n)
1
3
2
8
3
20
4
47
5
109
6
253
7
588
8
1367
9
3178
10
7388
11
17175
[3,8,20,47,109,253,588,1367,3178,7388,17175]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.
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