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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.

A275655 a(n) = binomial(6*n,3*n)*binomial(2*n,n).

Table of values

n a(n)
0 1
1 40
2 5544
3 972400
4 189290920
5 39089615040
6 8385425017200
7 1847301025078080
8 415026659401497000
9 94660194875011205440
10 21850091031597537252544
11 5092815839064962373499680
12 1196622940864849837505171824
13 283073284848591452381449360000

List of values

[1, 40, 5544, 972400, 189290920, 39089615040, 8385425017200, 1847301025078080, 415026659401497000, 94660194875011205440, 21850091031597537252544, 5092815839064962373499680, 1196622940864849837505171824, 283073284848591452381449360000]

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

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