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.

A306556 Integers that appear as (unreduced) numerators of segment endpoints when a ternary Cantor set is created.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 6
6 7
7 8
8 9
9 18
10 19
11 20
12 21
13 24
14 25
15 26
16 27
17 54
18 55
19 56
20 57
21 60
22 61
23 62
24 63
25 72
26 73
27 74
28 75
29 78
30 79
31 80
32 81
33 162
34 163
35 164
36 165
37 168
38 169
39 170
40 171
41 180
42 181
43 182
44 183
45 186
46 187
47 188
48 189
49 216
50 217
51 218
52 219
53 222
54 223
55 224
56 225
57 234
58 235
59 236
60 237
61 240
62 241
63 242
64 243

List of values

[0, 1, 2, 3, 6, 7, 8, 9, 18, 19, 20, 21, 24, 25, 26, 27, 54, 55, 56, 57, 60, 61, 62, 63, 72, 73, 74, 75, 78, 79, 80, 81, 162, 163, 164, 165, 168, 169, 170, 171, 180, 181, 182, 183, 186, 187, 188, 189, 216, 217, 218, 219, 222, 223, 224, 225, 234, 235, 236, 237, 240, 241, 242, 243]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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