A117747
formatted as a simple table:
n
a(n)
3
7
4
15
5
30
6
74
7
171
8
444
9
1138
10
3048
11
8175
12
22427
13
61686
14
171630
15
479411
[7,15,30,74,171,444,1138,3048,8175,22427,61686, 171630,479411]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
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