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.

A355769 Numbers k such that both k and k+1 can be written as the sum of two nonzero squares.

Table of values

n a(n)
1 17
2 25
3 40
4 52
5 72
6 73
7 89
8 97
9 100
10 116
11 136
12 145
13 148
14 169
15 180
16 193
17 225
18 232
19 233
20 241
21 244
22 260
23 288
24 289
25 292
26 305
27 313
28 337
29 369
30 388
31 400
32 404
33 409
34 424
35 449
36 457
37 481
38 520
39 521
40 544
41 548
42 577
43 584
44 585
45 592
46 612
47 625
48 628
49 640
50 656
51 673
52 676
53 697
54 724

List of values

[17, 25, 40, 52, 72, 73, 89, 97, 100, 116, 136, 145, 148, 169, 180, 193, 225, 232, 233, 241, 244, 260, 288, 289, 292, 305, 313, 337, 369, 388, 400, 404, 409, 424, 449, 457, 481, 520, 521, 544, 548, 577, 584, 585, 592, 612, 625, 628, 640, 656, 673, 676, 697, 724]