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A151516 formatted as a simple table:

n a(n)
1 1
2 1
3 2
4 4
5 10
6 24
7 67
8 182
9 520
10 1474
11 4248
12 12196

[1,1,2,4,10,24,67,182,520,1474,4248,12196]

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


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