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.

A032686 Numbers k such that k surrounded by digit '1' is a lucky number.

Table of values

n a(n)
1 1
2 4
3 5
4 7
5 10
6 20
7 23
8 25
9 26
10 28
11 29
12 40
13 44
14 47
15 49
16 50
17 61
18 64
19 70
20 71
21 73
22 77
23 80
24 83
25 92
26 94
27 101
28 109
29 118
30 130
31 134
32 137
33 139
34 149
35 152
36 154
37 158
38 164
39 172
40 173
41 178
42 181
43 191
44 196
45 199
46 212
47 214
48 215
49 220
50 230
51 232
52 239
53 241
54 248
55 262
56 263

List of values

[1, 4, 5, 7, 10, 20, 23, 25, 26, 28, 29, 40, 44, 47, 49, 50, 61, 64, 70, 71, 73, 77, 80, 83, 92, 94, 101, 109, 118, 130, 134, 137, 139, 149, 152, 154, 158, 164, 172, 173, 178, 181, 191, 196, 199, 212, 214, 215, 220, 230, 232, 239, 241, 248, 262, 263]