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.

A331228 a(n) = denominator of squared radius R^2 of the circumcircle of the n-th triangle with integer sides i <= j <= k in a list of such triangles, the list being sorted by increasing size of R. Numerators are A331227.

Table of values

n a(n)
1 3
2 15
3 3
4 7
5 35
6 32
7 1
8 20
9 63
10 15
11 15
12 55
13 3
14 4
15 99
16 96
17 39
18 91
19 231
20 11
21 84
22 3
23 224
24 143
25 7
26 7
27 35
28 5
29 64
30 8
31 39
32 119
33 455
34 1
35 51
36 255
37 195
38 320
39 192
40 96
41 96
42 187
43 180
44 95
45 171
46 55
47 160
48 3135
49 399
50 255
51 5
52 63
53 3
54 3
55 3
56 3
57 247
58 15
59 15
60 15
61 15
62 36
63 231
64 132
65 55

List of values

[3, 15, 3, 7, 35, 32, 1, 20, 63, 15, 15, 55, 3, 4, 99, 96, 39, 91, 231, 11, 84, 3, 224, 143, 7, 7, 35, 5, 64, 8, 39, 119, 455, 1, 51, 255, 195, 320, 192, 96, 96, 187, 180, 95, 171, 55, 160, 3135, 399, 255, 5, 63, 3, 3, 3, 3, 247, 15, 15, 15, 15, 36, 231, 132, 55]