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.

A217751 Number of pentagonal regions in the exterior of a regular n-gon with all diagonals drawn.

Table of values

n a(n)
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 22
12 48
13 78
14 84
15 240
16 128
17 306

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 22, 48, 78, 84, 240, 128, 306]