A049297
formatted as a simple table:
n
a(n)
1
1
2
2
3
3
4
6
5
6
6
20
7
14
8
46
9
51
10
140
11
108
12
624
13
352
14
1440
15
2172
[1,2,3,6,6,20,14,46,51,140,108,624,352,1440,2172]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
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