A054761
formatted as a simple table:
n
a(n)
0
1
1
4
2
13
3
37
4
99
5
254
6
636
7
1567
8
3822
9
9261
10
22346
[1,4,13,37,99,254,636,1567,3822,9261,22346]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 1 19:22 EST 2009. Contains 167811 sequences.
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