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.

A006533 Place n equally-spaced points around a circle and join every pair of points by a chord; this divides the circle into a(n) regions.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 16
6 30
7 57
8 88
9 163
10 230
11 386
12 456
13 794
14 966
15 1471
16 1712
17 2517
18 2484
19 4048
20 4520
21 6196
22 6842
23 9109
24 9048
25 12951
26 14014
27 17902
28 19208
29 24158
30 21510
31 31931
32 33888
33 41449
34 43826
35 52956
36 52992
37 66712
38 70034
39 82993
40 86840
41 102091
42 97776
43 124314
44 129448
45 149986
46 155894
47 179447
48 179280

List of values

[1, 2, 4, 8, 16, 30, 57, 88, 163, 230, 386, 456, 794, 966, 1471, 1712, 2517, 2484, 4048, 4520, 6196, 6842, 9109, 9048, 12951, 14014, 17902, 19208, 24158, 21510, 31931, 33888, 41449, 43826, 52956, 52992, 66712, 70034, 82993, 86840, 102091, 97776, 124314, 129448, 149986, 155894, 179447, 179280]