A051763
formatted as a simple table:
n
a(n)
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
3
9
8
10
42
11
185
12
888
13
5110
14
27436
15
168030
16
1008906
[0,0,0,0,0,0,0,3,8,42,185,888,5110,27436,168030, 1008906]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 25 20:09 EST 2009. Contains 167514 sequences.
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