cp's OEIS Frontend

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.

A201555 a(n) = C(2*n^2,n^2) = A000984(n^2), where A000984 is the central binomial coefficients.

Table of values

n a(n)
0 1
1 2
2 70
3 48620
4 601080390
5 126410606437752
6 442512540276836779204
7 25477612258980856902730428600
8 23951146041928082866135587776380551750
9 365907784099042279561985786395502921046971688680
10 90548514656103281165404177077484163874504589675413336841320

List of values

[1, 2, 70, 48620, 601080390, 126410606437752, 442512540276836779204, 25477612258980856902730428600, 23951146041928082866135587776380551750, 365907784099042279561985786395502921046971688680, 90548514656103281165404177077484163874504589675413336841320]

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

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