A092901
formatted as a simple table:
n
a(n)
0
0
1
0
2
3
3
64
4
497
5
3787
6
30870
7
261869
[0,0,3,64,497,3787,30870,261869]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 19 12:50 EST 2009. Contains 171053 sequences.
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