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.

A361030 a(n) = 20160*(3*n)!/(n!*(n+3)!^2).

Table of values

n a(n)
0 560
1 210
2 504
3 2352
4 15840
5 135135
6 1361360
7 15519504
8 194699232
9 2636552100
10 38003792400
11 577037174400
12 9155656500480
13 150853746558690
14 2568167588473200
15 44990491457326800
16 808333317429976800
17 14853124707775823700
18 278470827854627007600
19 5316261259042879236000

List of values

[560, 210, 504, 2352, 15840, 135135, 1361360, 15519504, 194699232, 2636552100, 38003792400, 577037174400, 9155656500480, 150853746558690, 2568167588473200, 44990491457326800, 808333317429976800, 14853124707775823700, 278470827854627007600, 5316261259042879236000]