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A032102 formatted as a simple table:

n a(n)
1 1
2 1
3 1
4 2
5 3
6 7
7 18
8 48
9 133
10 373
11 1054
12 3011
13 8678
14 25216
15 73801
16 217476
17 644554
18 1920718
19 5750807
20 17293653
21 52208550
22 158179651
23 480806995
24 1465841157
25 4481166838
26 13733815975
27 42189399220
28 129883408346

[1,1,1,2,3,7,18,48,133,373,1054,3011,8678,25216,
 73801,217476,644554,1920718,5750807,17293653,
 52208550,158179651,480806995,1465841157,
 4481166838,13733815975,42189399220,129883408346]

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Last modified December 4 12:48 EST 2009. Contains 170310 sequences.


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