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.

A056996 Positive integers not of the form sigma(k) + phi(k) - 2k for some k.

Table of values

n a(n)
1 5
2 11
3 19
4 21
5 23
6 27
7 33
8 35
9 39
10 43
11 45
12 47
13 51
14 53
15 55
16 59
17 67
18 69
19 71
20 79
21 81
22 83
23 87
24 95
25 99
26 101
27 103
28 105
29 107
30 113
31 115
32 117
33 119
34 123
35 129
36 131
37 135
38 139
39 141
40 143
41 147
42 151
43 153
44 155
45 159
46 165
47 167
48 171
49 173
50 175
51 177
52 179
53 185
54 187
55 189
56 191
57 193
58 195

List of values

[5, 11, 19, 21, 23, 27, 33, 35, 39, 43, 45, 47, 51, 53, 55, 59, 67, 69, 71, 79, 81, 83, 87, 95, 99, 101, 103, 105, 107, 113, 115, 117, 119, 123, 129, 131, 135, 139, 141, 143, 147, 151, 153, 155, 159, 165, 167, 171, 173, 175, 177, 179, 185, 187, 189, 191, 193, 195]