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A027502 formatted as a simple table:

n a(n)
2 7
3 117
4 312
5 7418
6 36766575
7 450992774700
8 600032219433556
9 26813098669386499444
10 2042240716844153630049782160
11 199614327158669913965028375115294 

[7,117,312,7418,36766575,450992774700,
 600032219433556,26813098669386499444,
 2042240716844153630049782160,
 199614327158669913965028375115294]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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