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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.

A079747 Numbers k such that gpf(k-1) < gpf(k) < gpf(k+1), where gpf(k) is the greatest prime factor of k (A006530).

Table of values

n a(n)
1 2
2 9
3 10
4 21
5 22
6 25
7 28
8 33
9 46
10 57
11 58
12 78
13 82
14 85
15 91
16 92
17 93
18 106
19 115
20 121
21 126
22 133
23 136
24 141
25 145
26 148
27 166
28 169
29 170
30 171
31 172
32 176
33 177
34 178
35 190
36 201
37 205
38 213
39 217
40 221
41 222
42 226
43 232
44 235
45 236
46 248
47 253
48 261
49 262
50 276
51 289
52 290
53 301
54 316
55 325
56 346

List of values

[2, 9, 10, 21, 22, 25, 28, 33, 46, 57, 58, 78, 82, 85, 91, 92, 93, 106, 115, 121, 126, 133, 136, 141, 145, 148, 166, 169, 170, 171, 172, 176, 177, 178, 190, 201, 205, 213, 217, 221, 222, 226, 232, 235, 236, 248, 253, 261, 262, 276, 289, 290, 301, 316, 325, 346]

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

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