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A048349 formatted as a simple table:

n a(n)
1 2
2 12
3 38
4 212
5 2538
6 6888
7 66592
8 210771
9 2059962
10 6696592
11 21081538
12 209868112
13 664488107
14 3800598038
15 18613286762
16 209820981888

[2,12,38,212,2538,6888,66592,210771,2059962,
 6696592,21081538,209868112,664488107,3800598038,
 18613286762,209820981888]

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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