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.

A323219 a(n) = [x^n] (1 - 4*x)^(-n/2)*x/(1 - x).

Table of values

n a(n)
0 0
1 1
2 5
3 37
4 313
5 2811
6 26093
7 247311
8 2377905
9 23104441
10 226289605
11 2230309533
12 22093913449
13 219786279909
14 2194096906461
15 21969023675097
16 220538907003489
17 2218881134793411
18 22368588800763701
19 225891901214751423
20 2284746661102951833
21 23140953249273852519

List of values

[0, 1, 5, 37, 313, 2811, 26093, 247311, 2377905, 23104441, 226289605, 2230309533, 22093913449, 219786279909, 2194096906461, 21969023675097, 220538907003489, 2218881134793411, 22368588800763701, 225891901214751423, 2284746661102951833, 23140953249273852519]