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.

A116045 n+phi(n)+phi(phi(n)) is a prime.

Table of values

n a(n)
1 1
2 4
3 5
4 9
5 13
6 17
7 19
8 21
9 25
10 33
11 35
12 39
13 41
14 43
15 49
16 61
17 75
18 79
19 85
20 87
21 95
22 101
23 121
24 133
25 137
26 141
27 153
28 155
29 159
30 163
31 165
32 169
33 177
34 181
35 193
36 199
37 201
38 203
39 207
40 213
41 215
42 231
43 233
44 245
45 251
46 257
47 259
48 265
49 267
50 271
51 277
52 291
53 299
54 307
55 309
56 337
57 339

List of values

[1, 4, 5, 9, 13, 17, 19, 21, 25, 33, 35, 39, 41, 43, 49, 61, 75, 79, 85, 87, 95, 101, 121, 133, 137, 141, 153, 155, 159, 163, 165, 169, 177, 181, 193, 199, 201, 203, 207, 213, 215, 231, 233, 245, 251, 257, 259, 265, 267, 271, 277, 291, 299, 307, 309, 337, 339]