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.

A324152 a(0)=1; for n>0, a(n) = (3/((n+1)*(n+2)*(n+3))) * multinomial(4*n;n,n,n,n).

Table of values

n a(n)
0 1
1 3
2 126
3 9240
4 900900
5 104756652
6 13742520792
7 1968826448160
8 301700280152700
9 48756255150603000
10 8226155369009738160
11 1438285479229504301760
12 259131100507849025033760
13 47897087290614993606462000
14 9050997011303368719799740000

List of values

[1, 3, 126, 9240, 900900, 104756652, 13742520792, 1968826448160, 301700280152700, 48756255150603000, 8226155369009738160, 1438285479229504301760, 259131100507849025033760, 47897087290614993606462000, 9050997011303368719799740000]