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.

A121728 Middle side (or long leg) of primitive Pythagorean triangle corresponding to hypotenuse A121727.

Table of values

n a(n)
1 4
2 12
3 15
4 24
5 40
6 21
7 35
8 60
9 63
10 84
11 45
12 112
13 56
14 99
15 144
16 55
17 77
18 80
19 180
20 143
21 220
22 72
23 117
24 91
25 195
26 264
27 140
28 312
29 255
30 165
31 105
32 364
33 176
34 132
35 323
36 420
37 221
38 120
39 480
40 187
41 153
42 168
43 399
44 260
45 544
46 285

List of values

[4, 12, 15, 24, 40, 21, 35, 60, 63, 84, 45, 112, 56, 99, 144, 55, 77, 80, 180, 143, 220, 72, 117, 91, 195, 264, 140, 312, 255, 165, 105, 364, 176, 132, 323, 420, 221, 120, 480, 187, 153, 168, 399, 260, 544, 285]