A006714
formatted as a simple table:
n
a(n)
3
10
4
840
5
257040
6
137260200
7
118257539400
8
154678050727200
[10,840,257040,137260200,118257539400, 154678050727200]
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(
njas@research.att.com
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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