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.

A128012 a(n) = 3*A001399(n).

Table of values

n a(n)
0 3
1 3
2 6
3 9
4 12
5 15
6 21
7 24
8 30
9 36
10 42
11 48
12 57
13 63
14 72
15 81
16 90
17 99
18 111
19 120
20 132
21 144
22 156
23 168
24 183
25 195
26 210
27 225
28 240
29 255
30 273
31 288
32 306
33 324
34 342
35 360
36 381
37 399
38 420
39 441
40 462
41 483
42 507
43 528
44 552
45 576
46 600
47 624
48 651
49 675
50 702
51 729
52 756
53 783
54 813
55 840
56 870

List of values

[3, 3, 6, 9, 12, 15, 21, 24, 30, 36, 42, 48, 57, 63, 72, 81, 90, 99, 111, 120, 132, 144, 156, 168, 183, 195, 210, 225, 240, 255, 273, 288, 306, 324, 342, 360, 381, 399, 420, 441, 462, 483, 507, 528, 552, 576, 600, 624, 651, 675, 702, 729, 756, 783, 813, 840, 870]