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.

A364516 a(n) = (2/3) * (8*n)!*(3*n)!^2/((6*n)!*(4*n)!*(2*n)!*n!^2) for n >= 1, with a(0) = 1.

Table of values

n a(n)
0 1
1 28
2 3900
3 685216
4 133501500
5 27583083528
6 5919115212192
7 1304298034300800
8 293086491979934268
9 66857471357130883000
10 15434267149448839091400
11 3597756971630997935635200
12 845406187463509505329860000
13 200002748013094535687584437696

List of values

[1, 28, 3900, 685216, 133501500, 27583083528, 5919115212192, 1304298034300800, 293086491979934268, 66857471357130883000, 15434267149448839091400, 3597756971630997935635200, 845406187463509505329860000, 200002748013094535687584437696]