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.

A309812 Odd integers k such that k^2 is arithmetic mean of two other perfect squares.

Table of values

n a(n)
1 5
2 13
3 15
4 17
5 25
6 29
7 35
8 37
9 39
10 41
11 45
12 51
13 53
14 55
15 61
16 65
17 73
18 75
19 85
20 87
21 89
22 91
23 95
24 97
25 101
26 105
27 109
28 111
29 113
30 115
31 117
32 119
33 123
34 125
35 135
36 137
37 143
38 145
39 149
40 153
41 155
42 157
43 159
44 165
45 169
46 173
47 175
48 181
49 183
50 185
51 187
52 193
53 195
54 197
55 203
56 205
57 215
58 219

List of values

[5, 13, 15, 17, 25, 29, 35, 37, 39, 41, 45, 51, 53, 55, 61, 65, 73, 75, 85, 87, 89, 91, 95, 97, 101, 105, 109, 111, 113, 115, 117, 119, 123, 125, 135, 137, 143, 145, 149, 153, 155, 157, 159, 165, 169, 173, 175, 181, 183, 185, 187, 193, 195, 197, 203, 205, 215, 219]