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.

A145195 Odd composite numbers n with property that at least one prime divisor p of n is a substring of the binary representation of n.

Table of values

n a(n)
1 15
2 27
3 39
4 45
5 51
6 55
7 57
8 63
9 75
10 85
11 87
12 91
13 93
14 95
15 99
16 105
17 111
18 117
19 119
20 123
21 125
22 135
23 141
24 147
25 153
26 155
27 159
28 165
29 171
30 175
31 177
32 183
33 185
34 187
35 189
36 195
37 201
38 205
39 207
40 213
41 215
42 219
43 221
44 225
45 231
46 235
47 237
48 243
49 245
50 247
51 249
52 255
53 267
54 279
55 285

List of values

[15, 27, 39, 45, 51, 55, 57, 63, 75, 85, 87, 91, 93, 95, 99, 105, 111, 117, 119, 123, 125, 135, 141, 147, 153, 155, 159, 165, 171, 175, 177, 183, 185, 187, 189, 195, 201, 205, 207, 213, 215, 219, 221, 225, 231, 235, 237, 243, 245, 247, 249, 255, 267, 279, 285]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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