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.

A257591 Odd numbers which are not prime powers but which have a proper divisor == 1 mod 4.

Table of values

n a(n)
1 15
2 35
3 39
4 45
5 51
6 55
7 63
8 65
9 75
10 85
11 87
12 91
13 95
14 99
15 105
16 111
17 115
18 117
19 119
20 123
21 135
22 143
23 145
24 147
25 153
26 155
27 159
28 165
29 171
30 175
31 183
32 185
33 187
34 189
35 195
36 203
37 205
38 207
39 215
40 219
41 221
42 225
43 231
44 235
45 245
46 247
47 255
48 259
49 261
50 265
51 267
52 273
53 275
54 279
55 285

List of values

[15, 35, 39, 45, 51, 55, 63, 65, 75, 85, 87, 91, 95, 99, 105, 111, 115, 117, 119, 123, 135, 143, 145, 147, 153, 155, 159, 165, 171, 175, 183, 185, 187, 189, 195, 203, 205, 207, 215, 219, 221, 225, 231, 235, 245, 247, 255, 259, 261, 265, 267, 273, 275, 279, 285]