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.

A273401 Numbers n such that n and n + 1 have exactly the same number of odd divisors.

Table of values

n a(n)
1 1
2 5
3 6
4 10
5 11
6 12
7 13
8 19
9 22
10 23
11 28
12 37
13 40
14 43
15 46
16 47
17 49
18 52
19 54
20 58
21 61
22 65
23 67
24 69
25 73
26 77
27 79
28 82
29 84
30 88
31 96
32 103
33 106
34 110
35 112
36 114
37 119
38 129
39 132
40 136
41 140
42 148
43 151
44 154
45 155
46 157
47 163
48 166
49 172
50 178
51 182
52 185
53 186
54 191
55 192
56 193
57 203
58 204
59 211
60 215
61 216
62 219
63 220
64 221

List of values

[1, 5, 6, 10, 11, 12, 13, 19, 22, 23, 28, 37, 40, 43, 46, 47, 49, 52, 54, 58, 61, 65, 67, 69, 73, 77, 79, 82, 84, 88, 96, 103, 106, 110, 112, 114, 119, 129, 132, 136, 140, 148, 151, 154, 155, 157, 163, 166, 172, 178, 182, 185, 186, 191, 192, 193, 203, 204, 211, 215, 216, 219, 220, 221]

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

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