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.

A122380 Numbers k such that k^2 > P(k)!, where P(k) is the greatest prime factor of k.

Table of values

n a(n)
1 2
2 3
3 4
4 6
5 8
6 9
7 12
8 15
9 16
10 18
11 20
12 24
13 25
14 27
15 30
16 32
17 36
18 40
19 45
20 48
21 50
22 54
23 60
24 64
25 72
26 75
27 80
28 81
29 84
30 90
31 96
32 98
33 100
34 105
35 108
36 112
37 120
38 125
39 126
40 128
41 135
42 140
43 144
44 147
45 150
46 160
47 162
48 168
49 175
50 180
51 189
52 192
53 196
54 200
55 210
56 216
57 224
58 225
59 240
60 243
61 245

List of values

[2, 3, 4, 6, 8, 9, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 81, 84, 90, 96, 98, 100, 105, 108, 112, 120, 125, 126, 128, 135, 140, 144, 147, 150, 160, 162, 168, 175, 180, 189, 192, 196, 200, 210, 216, 224, 225, 240, 243, 245]

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

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