A126747
formatted as a simple table:
n
a(n)
1
0
2
0
3
0
4
0
5
1
6
4
7
45
8
785
9
26205
10
1696407
[0,0,0,0,1,4,45,785,26205,1696407]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 19 12:50 EST 2009. Contains 171053 sequences.
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