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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.

A350038 Numbers that are the perimeter of a primitive 60-degree integer triangle.

Table of values

n a(n)
1 18
2 20
3 35
4 36
5 45
6 56
7 77
8 84
9 90
10 104
11 110
12 120
13 126
14 135
15 143
16 170
17 176
18 182
19 189
20 198
21 209
22 210
23 216
24 221
25 252
26 260
27 264
28 266
29 270
30 272
31 273
32 297
33 299
34 323
35 350
36 351
37 360
38 368
39 374
40 378
41 380
42 390
43 396
44 425
45 432
46 437
47 459
48 462
49 464
50 468
51 476
52 494
53 495
54 506
55 527
56 551
57 561
58 570
59 575
60 585
61 594
62 608
63 612

List of values

[18, 20, 35, 36, 45, 56, 77, 84, 90, 104, 110, 120, 126, 135, 143, 170, 176, 182, 189, 198, 209, 210, 216, 221, 252, 260, 264, 266, 270, 272, 273, 297, 299, 323, 350, 351, 360, 368, 374, 378, 380, 390, 396, 425, 432, 437, 459, 462, 464, 468, 476, 494, 495, 506, 527, 551, 561, 570, 575, 585, 594, 608, 612]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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