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.

A090064 Numbers n such that there are (presumably) three palindromes in the Reverse and Add! trajectory of n.

Table of values

n a(n)
1 18
2 27
3 36
4 45
5 54
6 63
7 69
8 72
9 78
10 81
11 87
12 90
13 96
14 99
15 113
16 125
17 126
18 128
19 137
20 146
21 149
22 156
23 157
24 162
25 163
26 165
27 168
28 169
29 172
30 175
31 180
32 183
33 188
34 189
35 193
36 194
37 195
38 197
39 220
40 224
41 225
42 227
43 232
44 236
45 242
46 245
47 248
48 252
49 255
50 256
51 259
52 261
53 264
54 267
55 268

List of values

[18, 27, 36, 45, 54, 63, 69, 72, 78, 81, 87, 90, 96, 99, 113, 125, 126, 128, 137, 146, 149, 156, 157, 162, 163, 165, 168, 169, 172, 175, 180, 183, 188, 189, 193, 194, 195, 197, 220, 224, 225, 227, 232, 236, 242, 245, 248, 252, 255, 256, 259, 261, 264, 267, 268]