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.

A339856 Primitive triples for integer-sided triangles whose sides a < b < c form a geometric progression.

Table of values

n a(n)
1 4
2 6
3 9
4 9
5 12
6 16
7 16
8 20
9 25
10 25
11 30
12 36
13 25
14 35
15 49
16 25
17 40
18 64
19 36
20 42
21 49
22 49
23 56
24 64
25 49
26 63
27 81
28 49
29 70
30 100
31 49
32 77
33 121
34 64
35 72
36 81
37 64
38 88
39 121
40 81
41 90
42 100
43 81
44 99
45 121
46 81
47 117
48 169
49 81
50 126
51 196
52 100
53 110
54 121
55 100
56 130
57 169
58 121
59 132
60 144
61 121
62 143
63 169

List of values

[4, 6, 9, 9, 12, 16, 16, 20, 25, 25, 30, 36, 25, 35, 49, 25, 40, 64, 36, 42, 49, 49, 56, 64, 49, 63, 81, 49, 70, 100, 49, 77, 121, 64, 72, 81, 64, 88, 121, 81, 90, 100, 81, 99, 121, 81, 117, 169, 81, 126, 196, 100, 110, 121, 100, 130, 169, 121, 132, 144, 121, 143, 169]

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

Content is available under The OEIS End-User License Agreement.