A056990
formatted as a simple table:
n
a(n)
1
2
2
8
3
192
4
22272
5
11550720
6
25629327360
7
236229525504000
8
8858686914082897920
9
1331751782100764385607680
[2,8,192,22272,11550720,25629327360, 236229525504000,8858686914082897920, 1331751782100764385607680]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
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