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.

A031956 Numbers with exactly three distinct base-4 digits.

Table of values

n a(n)
1 18
2 19
3 24
4 27
5 28
6 30
7 33
8 35
9 36
10 39
11 44
12 45
13 49
14 50
15 52
16 54
17 56
18 57
19 66
20 67
21 70
22 71
23 72
24 73
25 74
26 76
27 77
28 79
29 82
30 83
31 88
32 91
33 92
34 94
35 96
36 97
37 98
38 100
39 103
40 104
41 107
42 109
43 110
44 111
45 112
46 113
47 115
48 116
49 118
50 121
51 122
52 123
53 124
54 126
55 129

List of values

[18, 19, 24, 27, 28, 30, 33, 35, 36, 39, 44, 45, 49, 50, 52, 54, 56, 57, 66, 67, 70, 71, 72, 73, 74, 76, 77, 79, 82, 83, 88, 91, 92, 94, 96, 97, 98, 100, 103, 104, 107, 109, 110, 111, 112, 113, 115, 116, 118, 121, 122, 123, 124, 126, 129]