A084133
formatted as a simple table:
n
a(n)
0
1
1
3
2
19
3
117
4
721
5
4443
6
27379
7
168717
8
1039681
9
6406803
10
39480499
11
243289797
[1,3,19,117,721,4443,27379,168717,1039681,6406803, 39480499,243289797]
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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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