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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.

A336754 Perimeters in increasing order of integer-sided triangles whose sides a < b < c are in arithmetic progression.

Table of values

n a(n)
1 9
2 12
3 15
4 15
5 18
6 18
7 21
8 21
9 21
10 24
11 24
12 24
13 27
14 27
15 27
16 27
17 30
18 30
19 30
20 30
21 33
22 33
23 33
24 33
25 33
26 36
27 36
28 36
29 36
30 36
31 39
32 39
33 39
34 39
35 39
36 39
37 42
38 42
39 42
40 42
41 42
42 42
43 45
44 45
45 45
46 45
47 45
48 45
49 45
50 48
51 48
52 48
53 48
54 48
55 48
56 48
57 51
58 51
59 51
60 51
61 51
62 51
63 51
64 51

List of values

[9, 12, 15, 15, 18, 18, 21, 21, 21, 24, 24, 24, 27, 27, 27, 27, 30, 30, 30, 30, 33, 33, 33, 33, 33, 36, 36, 36, 36, 36, 39, 39, 39, 39, 39, 39, 42, 42, 42, 42, 42, 42, 45, 45, 45, 45, 45, 45, 45, 48, 48, 48, 48, 48, 48, 48, 51, 51, 51, 51, 51, 51, 51, 51]

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

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