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.

A237609 Positive integers k such that x^2 - 9xy + y^2 + k = 0 has integer solutions.

Table of values

n a(n)
1 7
2 13
3 17
4 19
5 28
6 41
7 52
8 61
9 63
10 68
11 73
12 76
13 77
14 83
15 101
16 112
17 117
18 131
19 139
20 143
21 153
22 161
23 164
24 167
25 171
26 173
27 175
28 187
29 208
30 209
31 227
32 241
33 244
34 252
35 259
36 271
37 272
38 283
39 292
40 293
41 299
42 304
43 307
44 308
45 325
46 332
47 343
48 349
49 369
50 371
51 391
52 404
53 409
54 425
55 437

List of values

[7, 13, 17, 19, 28, 41, 52, 61, 63, 68, 73, 76, 77, 83, 101, 112, 117, 131, 139, 143, 153, 161, 164, 167, 171, 173, 175, 187, 208, 209, 227, 241, 244, 252, 259, 271, 272, 283, 292, 293, 299, 304, 307, 308, 325, 332, 343, 349, 369, 371, 391, 404, 409, 425, 437]