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.

A262733 a(n) = (1/n!) * (7*n)!/(7*n/2)! * (5*n/2)!/(5*n)!.

Table of values

n a(n)
0 1
1 12
2 286
3 7680
4 217350
5 6336512
6 188296108
7 5670567936
8 172459427910
9 5284842700800
10 162922160580036
11 5047099485847552
12 156983503897469340
13 4899363753956474880
14 153349672416272587800
15 4811846645261721927680
16 151316978279502571401798
17 4767566079229070105640960

List of values

[1, 12, 286, 7680, 217350, 6336512, 188296108, 5670567936, 172459427910, 5284842700800, 162922160580036, 5047099485847552, 156983503897469340, 4899363753956474880, 153349672416272587800, 4811846645261721927680, 151316978279502571401798, 4767566079229070105640960]