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.

A109019 Numbers whose digit reversal is different and has the same number of prime factors (with multiplicity).

Table of values

n a(n)
1 13
2 15
3 17
4 26
5 31
6 37
7 39
8 49
9 51
10 58
11 62
12 71
13 73
14 79
15 85
16 93
17 94
18 97
19 107
20 113
21 115
22 117
23 122
24 123
25 126
26 129
27 143
28 147
29 149
30 155
31 157
32 158
33 159
34 165
35 167
36 169
37 177
38 178
39 179
40 183
41 185
42 187
43 199
44 203
45 205
46 221
47 225
48 226
49 244
50 246
51 265
52 270
53 285
54 286
55 289
56 290

List of values

[13, 15, 17, 26, 31, 37, 39, 49, 51, 58, 62, 71, 73, 79, 85, 93, 94, 97, 107, 113, 115, 117, 122, 123, 126, 129, 143, 147, 149, 155, 157, 158, 159, 165, 167, 169, 177, 178, 179, 183, 185, 187, 199, 203, 205, 221, 225, 226, 244, 246, 265, 270, 285, 286, 289, 290]

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

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