A033288
formatted as a simple table:
n
a(n)
0
1
1
0
2
0
3
0
4
6160
5
27104
6
157080
7
633600
[1,0,0,0,6160,27104,157080,633600]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 14:17 EST 2009. Contains 167569 sequences.
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