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.

A357278 Perimeters of primitive integer-sided triangles with angles A < B < C = 2*Pi/3 = 120 degrees.

Table of values

n a(n)
1 15
2 28
3 40
4 66
5 77
6 91
7 104
8 126
9 144
10 153
11 170
12 187
13 190
14 209
15 220
16 228
17 260
18 276
19 286
20 299
21 322
22 325
23 350
24 345
25 390
26 400
27 420
28 435
29 442
30 464
31 476
32 493
33 496
34 522
35 527
36 544
37 558
38 551
39 589
40 608
41 620
42 646
43 630
44 665
45 672
46 714
47 703
48 740
49 777
50 770
51 798
52 814
53 805

List of values

[15, 28, 40, 66, 77, 91, 104, 126, 144, 153, 170, 187, 190, 209, 220, 228, 260, 276, 286, 299, 322, 325, 350, 345, 390, 400, 420, 435, 442, 464, 476, 493, 496, 522, 527, 544, 558, 551, 589, 608, 620, 646, 630, 665, 672, 714, 703, 740, 777, 770, 798, 814, 805]