A159929
formatted as a simple table:
n
a(n)
1
1
2
2
3
5
4
11
5
26
6
57
7
131
8
296
9
669
10
1515
11
3430
12
7765
13
17577
14
39790
15
90069
16
203897
[1,2,5,11,26,57,131,296,669,1515,3430,7765,17577, 39790,90069,203897]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
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