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A161557 formatted as a simple table:

n a(n)
-1 1
0 744
1 393768
2 64481280
3 3457199880
4 101229281280
5 1999215843600
6 29764163100672

[1,744,393768,64481280,3457199880,101229281280,
 1999215843600,29764163100672]

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.


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