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.

A131417 Numbers n such that Sum_digits(n)=Sum_digits[n*Sum_digits(n)].

Table of values

n a(n)
1 0
2 1
3 9
4 10
5 18
6 19
7 27
8 28
9 36
10 37
11 45
12 46
13 55
14 64
15 73
16 82
17 90
18 91
19 99
20 100
21 109
22 117
23 118
24 126
25 127
26 135
27 136
28 145
29 154
30 163
31 172
32 180
33 181
34 190
35 198
36 199
37 208
38 217
39 225
40 226
41 234
42 235
43 244
44 253
45 262
46 270
47 271
48 280
49 288
50 289
51 297
52 298
53 307
54 316
55 325
56 334
57 343

List of values

[0, 1, 9, 10, 18, 19, 27, 28, 36, 37, 45, 46, 55, 64, 73, 82, 90, 91, 99, 100, 109, 117, 118, 126, 127, 135, 136, 145, 154, 163, 172, 180, 181, 190, 198, 199, 208, 217, 225, 226, 234, 235, 244, 253, 262, 270, 271, 280, 288, 289, 297, 298, 307, 316, 325, 334, 343]