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.

A225771 Numbers that are positive integer divisors of 1 + 2*x^2 where x is a positive integer.

Table of values

n a(n)
1 1
2 3
3 9
4 11
5 17
6 19
7 27
8 33
9 41
10 43
11 51
12 57
13 59
14 67
15 73
16 81
17 83
18 89
19 97
20 99
21 107
22 113
23 121
24 123
25 129
26 131
27 137
28 139
29 153
30 163
31 171
32 177
33 179
34 187
35 193
36 201
37 209
38 211
39 219
40 227
41 233
42 241
43 243
44 249
45 251
46 257
47 267
48 281
49 283
50 289
51 291
52 297
53 307
54 313
55 321
56 323

List of values

[1, 3, 9, 11, 17, 19, 27, 33, 41, 43, 51, 57, 59, 67, 73, 81, 83, 89, 97, 99, 107, 113, 121, 123, 129, 131, 137, 139, 153, 163, 171, 177, 179, 187, 193, 201, 209, 211, 219, 227, 233, 241, 243, 249, 251, 257, 267, 281, 283, 289, 291, 297, 307, 313, 321, 323]