A077550
formatted as a simple table:
n
a(n)
0
1
1
1
2
2
3
3
4
9
5
21
6
54
7
131
[1,1,2,3,9,21,54,131]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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