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.

A371254 Number of vertices formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.

Table of values

n a(n)
1 1
2 2
3 4
4 4
5 15
6 7
7 70
8 64
9 208
10 220
11 550
12 397
13 1131
14 1162
15 1981
16 2128
17 3723
18 3259
19 5966
20 6000
21 9010
22 9240
23 13524
24 12745
25 19325
26 19266
27 26434
28 26684
29 35931
30 33301
31 47368
32 47616
33 61216
34 61676
35 78330
36 76789
37 98901
38 99674
39 122656
40 123560

List of values

[1, 2, 4, 4, 15, 7, 70, 64, 208, 220, 550, 397, 1131, 1162, 1981, 2128, 3723, 3259, 5966, 6000, 9010, 9240, 13524, 12745, 19325, 19266, 26434, 26684, 35931, 33301, 47368, 47616, 61216, 61676, 78330, 76789, 98901, 99674, 122656, 123560]