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A054761 formatted as a simple table:

n a(n)
0 1
1 4
2 13
3 37
4 99
5 254
6 636
7 1567
8 3822
9 9261
10 22346

[1,4,13,37,99,254,636,1567,3822,9261,22346]

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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