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.

A176257 Numbers of the form 4k-1 with greatest prime divisor of the form 4m+1.

Table of values

n a(n)
1 15
2 39
3 51
4 75
5 87
6 91
7 111
8 119
9 123
10 135
11 143
12 159
13 183
14 187
15 195
16 203
17 219
18 255
19 259
20 267
21 287
22 291
23 303
24 319
25 327
26 339
27 351
28 371
29 375
30 407
31 411
32 427
33 435
34 447
35 451
36 455
37 459
38 471
39 507
40 511
41 519
42 543
43 551
44 555
45 579
46 583
47 591
48 595
49 615
50 623
51 663
52 667
53 671

List of values

[15, 39, 51, 75, 87, 91, 111, 119, 123, 135, 143, 159, 183, 187, 195, 203, 219, 255, 259, 267, 287, 291, 303, 319, 327, 339, 351, 371, 375, 407, 411, 427, 435, 447, 451, 455, 459, 471, 507, 511, 519, 543, 551, 555, 579, 583, 591, 595, 615, 623, 663, 667, 671]