A057808
formatted as a simple table:
n
a(n)
1
40
2
624
3
3744
4
5148
5
10240
6
54280
7
127920
8
1281072
[40,624,3744,5148,10240,54280,127920,1281072]
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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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