A006785
formatted as a simple table:
n
a(n)
1
1
2
2
3
3
4
7
5
14
6
38
7
107
8
410
9
1897
10
12172
11
105071
12
1262180
13
20797002
14
467871369
15
14232552452
[1,2,3,7,14,38,107,410,1897,12172,105071,1262180, 20797002,467871369,14232552452]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
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