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A073974 formatted as a simple table:

n a(n)
1 0
2 1
3 9
4 54
5 210
6 1008
7 6300
8 40824
9 262440
10 1679616

[0,1,9,54,210,1008,6300,40824,262440,1679616]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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