A019448
formatted as a simple table:
n
a(n)
1
1
2
2
3
5
4
16
5
58
6
231
7
1016
8
4782
9
23653
10
121727
11
648611
[1,2,5,16,58,231,1016,4782,23653,121727,648611]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 7 23:50 EST 2009. Contains 170430 sequences.
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