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.

A237351 Positive integers k such that x^2 - 5xy + y^2 + k = 0 has integer solutions.

Table of values

n a(n)
1 3
2 5
3 12
4 17
5 20
6 21
7 27
8 35
9 41
10 45
11 47
12 48
13 59
14 68
15 75
16 80
17 83
18 84
19 89
20 101
21 108
22 111
23 119
24 125
25 129
26 131
27 140
28 147
29 153
30 164
31 167
32 173
33 180
34 185
35 188
36 189
37 192
38 201
39 215
40 227
41 236
42 237
43 243
44 245
45 251
46 255
47 257
48 269
49 272
50 287
51 293
52 300
53 311
54 315
55 320
56 327

List of values

[3, 5, 12, 17, 20, 21, 27, 35, 41, 45, 47, 48, 59, 68, 75, 80, 83, 84, 89, 101, 108, 111, 119, 125, 129, 131, 140, 147, 153, 164, 167, 173, 180, 185, 188, 189, 192, 201, 215, 227, 236, 237, 243, 245, 251, 255, 257, 269, 272, 287, 293, 300, 311, 315, 320, 327]