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A086105 formatted as a simple table:

n a(n)
1 0
2 1
3 1
4 1
5 1
6 2
7 2
8 4
9 6
10 24
11 4738381338321616896
12 4738381338321616920
13 22452257707354557353808363243511480320 

[0,1,1,1,1,2,2,4,6,24,4738381338321616896,
 4738381338321616920,
 22452257707354557353808363243511480320]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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