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.

A370918 Positive integers whose ternary representation includes at least one 1, and every 1 is followed by 0.

Table of values

n a(n)
1 3
2 9
3 11
4 21
5 27
6 29
7 30
8 33
9 35
10 57
11 63
12 65
13 75
14 81
15 83
16 84
17 87
18 89
19 90
20 92
21 99
22 101
23 102
24 105
25 107
26 165
27 171
28 173
29 183
30 189
31 191
32 192
33 195
34 197
35 219
36 225
37 227
38 237
39 243
40 245
41 246
42 249
43 251
44 252
45 254
46 261
47 263
48 264
49 267
50 269
51 270
52 272
53 273
54 276
55 278
56 297

List of values

[3, 9, 11, 21, 27, 29, 30, 33, 35, 57, 63, 65, 75, 81, 83, 84, 87, 89, 90, 92, 99, 101, 102, 105, 107, 165, 171, 173, 183, 189, 191, 192, 195, 197, 219, 225, 227, 237, 243, 245, 246, 249, 251, 252, 254, 261, 263, 264, 267, 269, 270, 272, 273, 276, 278, 297]