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.

A039001 Numbers whose base-3 representation has the same number of 1's and 2's.

Table of values

n a(n)
1 0
2 5
3 7
4 11
5 15
6 19
7 21
8 29
9 33
10 44
11 45
12 50
13 52
14 55
15 57
16 63
17 68
18 70
19 76
20 83
21 87
22 98
23 99
24 104
25 106
26 116
27 128
28 132
29 135
30 140
31 142
32 146
33 150
34 154
35 156
36 163
37 165
38 171
39 176
40 178
41 184
42 189
43 194
44 196
45 200
46 204
47 208
48 210
49 220
50 226
51 228
52 245
53 249
54 260
55 261
56 266
57 268

List of values

[0, 5, 7, 11, 15, 19, 21, 29, 33, 44, 45, 50, 52, 55, 57, 63, 68, 70, 76, 83, 87, 98, 99, 104, 106, 116, 128, 132, 135, 140, 142, 146, 150, 154, 156, 163, 165, 171, 176, 178, 184, 189, 194, 196, 200, 204, 208, 210, 220, 226, 228, 245, 249, 260, 261, 266, 268]