A003054
formatted as a simple table:
n
a(n)
1
1
2
1
3
2
4
5
5
14
6
39
7
120
8
358
9
1176
10
3527
11
11622
12
36627
13
121622
14
389560
15
1301140
16
4215748
[1,1,2,5,14,39,120,358,1176,3527,11622,36627, 121622,389560,1301140,4215748]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 20 16:54 EST 2009. Contains 171081 sequences.
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