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.

A368733 a(n) = hypergeom([-1 - n, -n, 1 - n], [2, 3], -3).

Table of values

n a(n)
0 1
1 1
2 4
3 22
4 148
5 1132
6 9484
7 85066
8 804556
9 7939738
10 81128800
11 853424464
12 9201391456
13 101327618056
14 1136518296892
15 12954283592578
16 149770265417692
17 1753615603901818
18 20766700361401336
19 248449277456597908
20 3000039734827403608
21 36532024054221028576
22 448294209318801516064

List of values

[1, 1, 4, 22, 148, 1132, 9484, 85066, 804556, 7939738, 81128800, 853424464, 9201391456, 101327618056, 1136518296892, 12954283592578, 149770265417692, 1753615603901818, 20766700361401336, 248449277456597908, 3000039734827403608, 36532024054221028576, 448294209318801516064]