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.

A376249 Numbers that are not prime powers and have a unique largest prime exponent that is larger than the second-largest prime exponent by 1.

Table of values

n a(n)
1 12
2 18
3 20
4 28
5 44
6 45
7 50
8 52
9 60
10 63
11 68
12 72
13 75
14 76
15 84
16 90
17 92
18 98
19 99
20 108
21 116
22 117
23 124
24 126
25 132
26 140
27 147
28 148
29 150
30 153
31 156
32 164
33 171
34 172
35 175
36 188
37 198
38 200
39 204
40 207
41 212
42 220
43 228
44 234
45 236
46 242
47 244
48 245
49 260
50 261
51 268
52 275
53 276
54 279
55 284
56 292
57 294

List of values

[12, 18, 20, 28, 44, 45, 50, 52, 60, 63, 68, 72, 75, 76, 84, 90, 92, 98, 99, 108, 116, 117, 124, 126, 132, 140, 147, 148, 150, 153, 156, 164, 171, 172, 175, 188, 198, 200, 204, 207, 212, 220, 228, 234, 236, 242, 244, 245, 260, 261, 268, 275, 276, 279, 284, 292, 294]

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

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