A136351
formatted as a simple table:
n
a(n)
1
2
2
6
3
30
4
210
5
2310
6
200560490130
[2,6,30,210,2310,200560490130]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 21 10:15 EST 2009. Contains 171081 sequences.
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