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.

A066123 Numbers that in base 2 need two 'Reverse and Add' steps to reach a palindrome.

Table of values

n a(n)
1 11
2 13
3 23
4 29
5 39
6 43
7 53
8 55
9 57
10 59
11 69
12 79
13 81
14 87
15 91
16 109
17 117
18 121
19 133
20 143
21 151
22 161
23 167
24 171
25 173
26 175
27 179
28 181
29 183
30 205
31 207
32 213
33 215
34 229
35 233
36 235
37 237
38 239
39 241
40 243
41 245
42 247
43 261
44 265
45 277
46 287
47 289
48 303
49 311
50 321
51 327
52 337
53 343
54 347
55 349

List of values

[11, 13, 23, 29, 39, 43, 53, 55, 57, 59, 69, 79, 81, 87, 91, 109, 117, 121, 133, 143, 151, 161, 167, 171, 173, 175, 179, 181, 183, 205, 207, 213, 215, 229, 233, 235, 237, 239, 241, 243, 245, 247, 261, 265, 277, 287, 289, 303, 311, 321, 327, 337, 343, 347, 349]