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.

A082867 Numbers n such that there exists a proper divisor 1 < m < n where m divides n and m+1 divides n+1, but there is no divisor d such that d divides n, d+1 divides n+1 and d+2 divides n+2.

Table of values

n a(n)
1 8
2 15
3 20
4 24
5 27
6 32
7 35
8 39
9 44
10 48
11 51
12 56
13 65
14 68
15 75
16 80
17 84
18 87
19 90
20 92
21 95
22 99
23 104
24 111
25 116
26 119
27 120
28 125
29 128
30 132
31 135
32 140
33 143
34 144
35 147
36 152
37 155
38 159
39 164
40 168
41 171
42 175
43 176
44 185
45 188
46 189
47 195
48 200
49 204
50 207
51 212
52 216
53 219
54 224
55 231
56 236
57 245

List of values

[8, 15, 20, 24, 27, 32, 35, 39, 44, 48, 51, 56, 65, 68, 75, 80, 84, 87, 90, 92, 95, 99, 104, 111, 116, 119, 120, 125, 128, 132, 135, 140, 143, 144, 147, 152, 155, 159, 164, 168, 171, 175, 176, 185, 188, 189, 195, 200, 204, 207, 212, 216, 219, 224, 231, 236, 245]

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

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