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.

A384136 a(n) = (3*n)!/(2*n)! * Sum_{k=1..n} 1/(2*n+k).

Table of values

n a(n)
1 1
2 11
3 191
4 4578
5 140274
6 5238132
7 230784840
8 11720201616
9 674092013040
10 43310839531680
11 3074579815271040
12 238983481496188800
13 20187063842072319360
14 1841332369689189619200
15 180372122189263722009600
16 18885338733119777188300800
17 2104722524872544008142592000

List of values

[1, 11, 191, 4578, 140274, 5238132, 230784840, 11720201616, 674092013040, 43310839531680, 3074579815271040, 238983481496188800, 20187063842072319360, 1841332369689189619200, 180372122189263722009600, 18885338733119777188300800, 2104722524872544008142592000]