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.

A367254 a(n) = binomial(2*n - 1, n - 1)*(2*n)^n.

Table of values

n a(n)
0 1
1 2
2 48
3 2160
4 143360
5 12600000
6 1379524608
7 180889572864
8 27638114549760
9 4822114348846080
10 945950720000000000
11 206098414000597966848
12 49378358320648503164928
13 12902739286521391316172800
14 3651796443284936332620595200
15 1112883434275320000000000000000

List of values

[1, 2, 48, 2160, 143360, 12600000, 1379524608, 180889572864, 27638114549760, 4822114348846080, 945950720000000000, 206098414000597966848, 49378358320648503164928, 12902739286521391316172800, 3651796443284936332620595200, 1112883434275320000000000000000]

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

Content is available under The OEIS End-User License Agreement.