A135218
formatted as a simple table:
n
a(n)
0
1
1
1
2
1
3
25
4
25
5
745
6
3145
7
40945
8
353425
9
4200625
[1,1,1,25,25,745,3145,40945,353425,4200625]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
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