A003400
formatted as a simple table:
n
a(n)
1
1
2
0
3
0
4
0
5
0
6
8
7
152
8
3696
9
135004
10
7971848
11
805364776
[1,0,0,0,0,8,152,3696,135004,7971848,805364776]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
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