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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.

A024354 Consider primitive Pythagorean triangles (A^2 + B^2 = C^2, (A, B) = 1, A <= B); sequence gives values of B, sorted and duplicates removed (first differs from A020883 at 420).

Table of values

n a(n)
1 4
2 12
3 15
4 21
5 24
6 35
7 40
8 45
9 55
10 56
11 60
12 63
13 72
14 77
15 80
16 84
17 91
18 99
19 105
20 112
21 117
22 120
23 132
24 140
25 143
26 144
27 153
28 156
29 165
30 168
31 171
32 176
33 180
34 187
35 195
36 208
37 209
38 220
39 221
40 224
41 231
42 240
43 247
44 252
45 253
46 255
47 260
48 264
49 272
50 273
51 275
52 285
53 288
54 299
55 304
56 308

List of values

[4, 12, 15, 21, 24, 35, 40, 45, 55, 56, 60, 63, 72, 77, 80, 84, 91, 99, 105, 112, 117, 120, 132, 140, 143, 144, 153, 156, 165, 168, 171, 176, 180, 187, 195, 208, 209, 220, 221, 224, 231, 240, 247, 252, 253, 255, 260, 264, 272, 273, 275, 285, 288, 299, 304, 308]

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