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A055506 formatted as a simple table:

n a(n)
1 2
2 3
3 4
4 10
5 17
6 49
7 93
8 359
9 1138
10 3802
11 12124
12 52844
13 182752
14 696647
15 2852886
16 16423633
17 75301815
18 367900714
19 1531612895
20 8389371542 

[2,3,4,10,17,49,93,359,1138,3802,12124,52844,
 182752,696647,2852886,16423633,75301815,367900714,
 1531612895,8389371542]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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