A076280
formatted as a simple table:
n
a(n)
1
0
2
0
3
0
4
1
5
4
6
31
7
318
8
5366
9
155291
10
7855628
[0,0,0,1,4,31,318,5366,155291,7855628]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 11 12:57 EST 2009. Contains 170656 sequences.
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