A007499
formatted as a simple table:
n
a(n)
1
2
2
3
3
4
4
12
5
20
6
55
7
127
8
371
9
1037
10
3249
[2,3,4,12,20,55,127,371,1037,3249]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 6 22:55 EST 2009. Contains 170429 sequences.
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