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A003583 formatted as a simple table:

n a(n)
0 1
1 5
2 26
3 130
4 628
5 2954
6 13612
7 61716
8 276200
9 1223002
10 5367676
11 23383100
12 101215576
13 435712580
14 1866667448
15 7963424104
16 33846062544
17 143373104378
18 605518549660
19 2550438016812
20 10716162617336

[1,5,26,130,628,2954,13612,61716,276200,1223002,
 5367676,23383100,101215576,435712580,1866667448,
 7963424104,33846062544,143373104378,605518549660,
 2550438016812,10716162617336]

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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