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.

A049305 Numbers k such that k is a substring of 7^k.

Table of values

n a(n)
1 3
2 4
3 6
4 8
5 12
6 15
7 20
8 40
9 42
10 43
11 50
12 53
13 55
14 59
15 60
16 61
17 62
18 69
19 72
20 73
21 74
22 75
23 78
24 79
25 80
26 81
27 83
28 86
29 87
30 88
31 89
32 93
33 94
34 95
35 96
36 97
37 99
38 100
39 103
40 111
41 113
42 114
43 118
44 164
45 165
46 185
47 193
48 200
49 207
50 210
51 215
52 220
53 230
54 232
55 238
56 241
57 243
58 250
59 253
60 254
61 255

List of values

[3, 4, 6, 8, 12, 15, 20, 40, 42, 43, 50, 53, 55, 59, 60, 61, 62, 69, 72, 73, 74, 75, 78, 79, 80, 81, 83, 86, 87, 88, 89, 93, 94, 95, 96, 97, 99, 100, 103, 111, 113, 114, 118, 164, 165, 185, 193, 200, 207, 210, 215, 220, 230, 232, 238, 241, 243, 250, 253, 254, 255]