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A001587 formatted as a simple table:

n a(n)
0 2
1 6
2 46
3 522
4 7970
5 152166
6 3487246
7 93241002
8 2849229890
9 97949265606
10 3741386059246
11 157201459863882
12 7205584123783010
13 357802951084619046 

[2,6,46,522,7970,152166,3487246,93241002,
 2849229890,97949265606,3741386059246,
 157201459863882,7205584123783010,
 357802951084619046]

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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.

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