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.

A186300 (A007521(n)+1)/2.

Table of values

n a(n)
1 3
2 7
3 15
4 19
5 27
6 31
7 51
8 55
9 75
10 79
11 87
12 91
13 99
14 115
15 135
16 139
17 147
18 159
19 175
20 187
21 195
22 199
23 211
24 231
25 255
26 271
27 279
28 307
29 327
30 331
31 339
32 351
33 355
34 367
35 379
36 387
37 399
38 411
39 415
40 427
41 439
42 471
43 499
44 507
45 511
46 531
47 535
48 547
49 555
50 559
51 591
52 607

List of values

[3, 7, 15, 19, 27, 31, 51, 55, 75, 79, 87, 91, 99, 115, 135, 139, 147, 159, 175, 187, 195, 199, 211, 231, 255, 271, 279, 307, 327, 331, 339, 351, 355, 367, 379, 387, 399, 411, 415, 427, 439, 471, 499, 507, 511, 531, 535, 547, 555, 559, 591, 607]