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A005411 formatted as a simple table:

n a(n)
1 1
2 4
3 25
4 208
5 2146
6 26368
7 375733
8 6092032
9 110769550
10 2232792064

[1,4,25,208,2146,26368,375733,6092032,110769550,
 2232792064]

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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