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A116400 formatted as a simple table:

n a(n)
0 0
1 0
2 1
3 1
4 5
5 5
6 21
7 21
8 84
9 84
10 330
11 330
12 1287
13 1287
14 5005
15 5005
16 19448
17 19448
18 75582
19 75582
20 293930
21 293930
22 1144066
23 1144066
24 4457400
25 4457400
26 17383860
27 17383860
28 67863915
29 67863915
30 265182525

[0,0,1,1,5,5,21,21,84,84,330,330,1287,1287,5005,
 5005,19448,19448,75582,75582,293930,293930,
 1144066,1144066,4457400,4457400,17383860,17383860,
 67863915,67863915,265182525]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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