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.

A265189 Soddy circles: the two circles tangent to each of three mutually tangent circles.

Table of values

n a(n)
1 69
2 46
3 23
4 6
5 138
6 70
7 30
8 21
9 5
10 105
11 132
12 33
13 11
14 4
15 -132
16 138
17 92
18 46
19 12
20 276
21 140
22 60
23 42
24 10
25 210
26 153
27 136
28 72
29 17
30 306
31 207
32 138
33 69
34 18
35 414
36 210
37 90
38 63
39 15
40 315
41 216
42 135
43 24
44 10
45 -135
46 238
47 119
48 102
49 21
50 357
51 252
52 63
53 28
54 9
55 0

List of values

[69, 46, 23, 6, 138, 70, 30, 21, 5, 105, 132, 33, 11, 4, -132, 138, 92, 46, 12, 276, 140, 60, 42, 10, 210, 153, 136, 72, 17, 306, 207, 138, 69, 18, 414, 210, 90, 63, 15, 315, 216, 135, 24, 10, -135, 238, 119, 102, 21, 357, 252, 63, 28, 9, 0]