A002514
formatted as a simple table:
n
a(n)
1
0
2
0
3
0
4
0
5
1
6
3
7
15
8
79
9
474
10
3207
11
24087
12
198923
13
1791902
14
17484377
[0,0,0,0,1,3,15,79,474,3207,24087,198923,1791902, 17484377]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
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