A130131
formatted as a simple table:
n
a(n)
1
1
2
1
3
1
4
2
5
3
6
6
7
11
8
23
9
47
10
105
11
231
12
532
13
1224
14
2872
[1,1,1,2,3,6,11,23,47,105,231,532,1224,2872]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 5 23:38 EST 2009. Contains 170428 sequences.
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