A018240
formatted as a simple table:
n
a(n)
3
1
4
1
5
2
6
3
7
7
8
12
9
24
10
45
11
91
12
176
13
352
14
693
15
1387
16
2752
[1,1,2,3,7,12,24,45,91,176,352,693,1387,2752]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
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