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.

A374339 Start with two vertices and draw a circle around each whose radius is the distance between the vertices. The sequence gives the number of curved edges constructed after n iterations of drawing circles with this same radius around every new vertex created from all circles' intersections.

Table of values

n a(n)
1 6
2 18
3 40
4 78
5 132
6 190
7 264
8 354
9 448
10 558
11 684
12 814
13 960
14 1122
15 1288
16 1470
17 1668
18 1870
19 2088
20 2322
21 2560
22 2814
23 3084
24 3358
25 3648
26 3954
27 4264
28 4590
29 4932
30 5278
31 5640
32 6018
33 6400
34 6798
35 7212
36 7630
37 8064
38 8514
39 8968
40 9438
41 9924
42 10414
43 10920
44 11442
45 11968
46 12510
47 13068
48 13630
49 14208
50 14802

List of values

[6, 18, 40, 78, 132, 190, 264, 354, 448, 558, 684, 814, 960, 1122, 1288, 1470, 1668, 1870, 2088, 2322, 2560, 2814, 3084, 3358, 3648, 3954, 4264, 4590, 4932, 5278, 5640, 6018, 6400, 6798, 7212, 7630, 8064, 8514, 8968, 9438, 9924, 10414, 10920, 11442, 11968, 12510, 13068, 13630, 14208, 14802]