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.

A067531 Numbers n such that n - number of divisors of n is a prime.

Table of values

n a(n)
1 5
2 6
3 7
4 13
5 15
6 16
7 19
8 21
9 27
10 31
11 33
12 35
13 43
14 51
15 57
16 61
17 65
18 73
19 77
20 87
21 93
22 103
23 105
24 109
25 111
26 135
27 139
28 141
29 143
30 151
31 155
32 161
33 165
34 177
35 181
36 183
37 185
38 189
39 193
40 199
41 201
42 203
43 215
44 229
45 231
46 237
47 241
48 245
49 267
50 271
51 275
52 283
53 285
54 287
55 313
56 321
57 335

List of values

[5, 6, 7, 13, 15, 16, 19, 21, 27, 31, 33, 35, 43, 51, 57, 61, 65, 73, 77, 87, 93, 103, 105, 109, 111, 135, 139, 141, 143, 151, 155, 161, 165, 177, 181, 183, 185, 189, 193, 199, 201, 203, 215, 229, 231, 237, 241, 245, 267, 271, 275, 283, 285, 287, 313, 321, 335]