A005820
formatted as a simple table:
n
a(n)
1
120
2
672
3
523776
4
459818240
5
1476304896
6
51001180160
[120,672,523776,459818240,1476304896,51001180160]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
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