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.

A238240 Positive integers n such that x^2 - 20xy + y^2 + n = 0 has integer solutions.

Table of values

n a(n)
1 18
2 35
3 50
4 63
5 72
6 74
7 83
8 90
9 95
10 98
11 99
12 107
13 140
14 162
15 171
16 200
17 215
18 227
19 252
20 266
21 275
22 288
23 296
24 315
25 332
26 347
27 359
28 360
29 362
30 371
31 380
32 387
33 392
34 395
35 396
36 407
37 428
38 450
39 491
40 495
41 530
42 539
43 560
44 567
45 602
46 623
47 626
48 635
49 648
50 666
51 684
52 695
53 711
54 722
55 743
56 747
57 755
58 770
59 791
60 794
61 800
62 810

List of values

[18, 35, 50, 63, 72, 74, 83, 90, 95, 98, 99, 107, 140, 162, 171, 200, 215, 227, 252, 266, 275, 288, 296, 315, 332, 347, 359, 360, 362, 371, 380, 387, 392, 395, 396, 407, 428, 450, 491, 495, 530, 539, 560, 567, 602, 623, 626, 635, 648, 666, 684, 695, 711, 722, 743, 747, 755, 770, 791, 794, 800, 810]