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A143123 formatted as a simple table:

n a(n)
0 1
1 2
2 6
3 16
4 42
5 101
6 241
7 548
8 1232
9 2696
10 5818
11 25744
12 52992

[1,2,6,16,42,101,241,548,1232,2696,5818,25744,
 52992]

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


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