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.

A060140 Ordered set S defined by these rules: 0 and 1 are in S and if x is a nonzero number in S, then 3x and 9x+1 are in S.

Table of values

n a(n)
0 0
1 1
2 3
3 9
4 10
5 27
6 28
7 30
8 81
9 82
10 84
11 90
12 91
13 243
14 244
15 246
16 252
17 253
18 270
19 271
20 273
21 729
22 730
23 732
24 738
25 739
26 756
27 757
28 759
29 810
30 811
31 813
32 819
33 820
34 2187
35 2188
36 2190
37 2196
38 2197
39 2214
40 2215
41 2217
42 2268
43 2269
44 2271
45 2277
46 2278
47 2430
48 2431
49 2433
50 2439

List of values

[0, 1, 3, 9, 10, 27, 28, 30, 81, 82, 84, 90, 91, 243, 244, 246, 252, 253, 270, 271, 273, 729, 730, 732, 738, 739, 756, 757, 759, 810, 811, 813, 819, 820, 2187, 2188, 2190, 2196, 2197, 2214, 2215, 2217, 2268, 2269, 2271, 2277, 2278, 2430, 2431, 2433, 2439]