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.

A091454 Integers k such that 3*phi(k) < k.

Table of values

n a(n)
1 30
2 42
3 60
4 66
5 78
6 84
7 90
8 102
9 114
10 120
11 126
12 132
13 138
14 150
15 156
16 168
17 174
18 180
19 186
20 198
21 204
22 210
23 222
24 228
25 234
26 240
27 246
28 252
29 258
30 264
31 270
32 276
33 282
34 294
35 300
36 306
37 312
38 318
39 330
40 336
41 342
42 348
43 354
44 360
45 366
46 372
47 378
48 390
49 396
50 402
51 408
52 414
53 420

List of values

[30, 42, 60, 66, 78, 84, 90, 102, 114, 120, 126, 132, 138, 150, 156, 168, 174, 180, 186, 198, 204, 210, 222, 228, 234, 240, 246, 252, 258, 264, 270, 276, 282, 294, 300, 306, 312, 318, 330, 336, 342, 348, 354, 360, 366, 372, 378, 390, 396, 402, 408, 414, 420]