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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A001450 a(n) = binomial(5*n,2*n).

Table of values

n a(n)
0 1
1 10
2 210
3 5005
4 125970
5 3268760
6 86493225
7 2319959400
8 62852101650
9 1715884494940
10 47129212243960
11 1300853625660225
12 36052387482172425
13 1002596421878664480
14 27963143931814663880
15 781879430625942976880
16 21910242651571684460050
17 615167304833936727234180

List of values

[1, 10, 210, 5005, 125970, 3268760, 86493225, 2319959400, 62852101650, 1715884494940, 47129212243960, 1300853625660225, 36052387482172425, 1002596421878664480, 27963143931814663880, 781879430625942976880, 21910242651571684460050, 615167304833936727234180]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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