A051769
formatted as a simple table:
n
a(n)
1
0
2
0
3
1
4
0
5
2
6
2
7
7
8
16
9
47
10
125
11
365
12
1015
13
3069
14
8813
15
26712
16
78717
[0,0,1,0,2,2,7,16,47,125,365,1015,3069,8813,26712, 78717]
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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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