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.

A384169 a(n) = 4^n * n! * binomial(5*n/4,n) * Sum_{k=1..n} 1/(n+4*k).

Table of values

n a(n)
1 1
2 16
3 347
4 9856
5 349269
6 14885760
7 742589175
8 42479124480
9 2742327328905
10 197267905658880
11 15649214440432275
12 1357388618032742400
13 127808331929417605725
14 12983375200126773657600
15 1415428114244995252270575
16 164837363498660501913600000
17 20423530465926352502482292625

List of values

[1, 16, 347, 9856, 349269, 14885760, 742589175, 42479124480, 2742327328905, 197267905658880, 15649214440432275, 1357388618032742400, 127808331929417605725, 12983375200126773657600, 1415428114244995252270575, 164837363498660501913600000, 20423530465926352502482292625]