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.

A257411 Values of n such that there are exactly 4 solutions to x^2 - y^2 = n with x > y >= 0.

Table of values

n a(n)
1 96
2 105
3 120
4 135
5 160
6 165
7 168
8 189
9 195
10 216
11 224
12 231
13 255
14 256
15 264
16 273
17 280
18 285
19 297
20 312
21 345
22 351
23 352
24 357
25 375
26 385
27 399
28 408
29 416
30 420
31 429
32 435
33 440
34 455
35 456
36 459
37 465
38 483
39 512
40 513
41 520
42 540
43 544
44 552
45 555
46 561
47 595
48 608
49 609
50 615
51 616
52 621

List of values

[96, 105, 120, 135, 160, 165, 168, 189, 195, 216, 224, 231, 255, 256, 264, 273, 280, 285, 297, 312, 345, 351, 352, 357, 375, 385, 399, 408, 416, 420, 429, 435, 440, 455, 456, 459, 465, 483, 512, 513, 520, 540, 544, 552, 555, 561, 595, 608, 609, 615, 616, 621]