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.

A324478 a(n) = (6/((n+1)*(n+2)*(n+3))) * multinomial(4*n;n,n,n,n).

Table of values

n a(n)
0 1
1 6
2 252
3 18480
4 1801800
5 209513304
6 27485041584
7 3937652896320
8 603400560305400
9 97512510301206000
10 16452310738019476320
11 2876570958459008603520
12 518262201015698050067520
13 95794174581229987212924000
14 18101994022606737439599480000

List of values

[1, 6, 252, 18480, 1801800, 209513304, 27485041584, 3937652896320, 603400560305400, 97512510301206000, 16452310738019476320, 2876570958459008603520, 518262201015698050067520, 95794174581229987212924000, 18101994022606737439599480000]