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.

A091527 a(n) = ((3*n)!/n!^2)*(Gamma(1+n/2)/Gamma(1+3n/2)).

Table of values

n a(n)
0 1
1 4
2 30
3 256
4 2310
5 21504
6 204204
7 1966080
8 19122246
9 187432960
10 1848483780
11 18320719872
12 182327718300
13 1820797698048
14 18236779032600
15 183120225632256
16 1842826521244230
17 18581317012684800
18 187679234340049620
19 1898554215471513600
20 19232182592635611060

List of values

[1, 4, 30, 256, 2310, 21504, 204204, 1966080, 19122246, 187432960, 1848483780, 18320719872, 182327718300, 1820797698048, 18236779032600, 183120225632256, 1842826521244230, 18581317012684800, 187679234340049620, 1898554215471513600, 19232182592635611060]