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.

A120740 Numbers n such that n = Sum_digits[k*abs(n-k)] for some k>=0.

Table of values

n a(n)
1 0
2 4
3 5
4 9
5 14
6 18
7 23
8 27
9 32
10 36
11 41
12 45
13 50
14 54
15 59
16 63
17 68
18 72
19 77
20 81
21 86
22 90
23 95
24 99
25 104
26 108
27 113
28 117
29 122
30 126
31 131
32 135
33 140
34 144
35 149
36 153
37 158
38 162
39 167
40 171
41 176
42 180
43 185
44 189
45 194
46 198
47 203
48 207
49 212
50 216
51 221
52 225
53 230
54 234
55 239
56 243
57 248
58 252

List of values

[0, 4, 5, 9, 14, 18, 23, 27, 32, 36, 41, 45, 50, 54, 59, 63, 68, 72, 77, 81, 86, 90, 95, 99, 104, 108, 113, 117, 122, 126, 131, 135, 140, 144, 149, 153, 158, 162, 167, 171, 176, 180, 185, 189, 194, 198, 203, 207, 212, 216, 221, 225, 230, 234, 239, 243, 248, 252]