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.

A271999 Halogen sequence: a(n) = A018227(n)-1.

Table of values

n a(n)
1 1
2 11
3 17
4 35
5 53
6 85
7 117
8 167
9 217
10 289
11 361
12 459
13 557
14 685
15 813
16 975
17 1137
18 1337
19 1537
20 1779
21 2021
22 2309
23 2597
24 2935
25 3273
26 3665
27 4057
28 4507
29 4957
30 5469
31 5981
32 6559
33 7137
34 7785
35 8433
36 9155
37 9877
38 10677
39 11477
40 12359
41 13241
42 14209
43 15177
44 16235
45 17293

List of values

[1, 11, 17, 35, 53, 85, 117, 167, 217, 289, 361, 459, 557, 685, 813, 975, 1137, 1337, 1537, 1779, 2021, 2309, 2597, 2935, 3273, 3665, 4057, 4507, 4957, 5469, 5981, 6559, 7137, 7785, 8433, 9155, 9877, 10677, 11477, 12359, 13241, 14209, 15177, 16235, 17293]