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A001287 formatted as a simple table:

n a(n)
10 1
11 11
12 66
13 286
14 1001
15 3003
16 8008
17 19448
18 43758
19 92378
20 184756
21 352716
22 646646
23 1144066
24 1961256
25 3268760
26 5311735
27 8436285
28 13123110
29 20030010
30 30045015

[1,11,66,286,1001,3003,8008,19448,43758,92378,
 184756,352716,646646,1144066,1961256,3268760,
 5311735,8436285,13123110,20030010,30045015]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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