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.

A191217 Numbers n such that sigma(n) is congruent to 2 modulo 4.

Table of values

n a(n)
1 5
2 10
3 13
4 17
5 20
6 26
7 29
8 34
9 37
10 40
11 41
12 45
13 52
14 53
15 58
16 61
17 68
18 73
19 74
20 80
21 82
22 89
23 90
24 97
25 101
26 104
27 106
28 109
29 113
30 116
31 117
32 122
33 136
34 137
35 146
36 148
37 149
38 153
39 157
40 160
41 164
42 173
43 178
44 180
45 181
46 193
47 194
48 197
49 202
50 208
51 212
52 218
53 226
54 229
55 232
56 233
57 234
58 241
59 244
60 245
61 257
62 261
63 269

List of values

[5, 10, 13, 17, 20, 26, 29, 34, 37, 40, 41, 45, 52, 53, 58, 61, 68, 73, 74, 80, 82, 89, 90, 97, 101, 104, 106, 109, 113, 116, 117, 122, 136, 137, 146, 148, 149, 153, 157, 160, 164, 173, 178, 180, 181, 193, 194, 197, 202, 208, 212, 218, 226, 229, 232, 233, 234, 241, 244, 245, 257, 261, 269]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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