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.

A141554 Transformed nonprime products of prime factors of the composites, the largest prime decremented by 2 and the smallest prime incremented by 2.

Table of values

n a(n)
1 0
2 4
3 0
4 12
5 8
6 20
7 15
8 0
9 12
10 24
11 25
12 36
13 16
14 21
15 44
16 15
17 40
18 36
19 0
20 45
21 60
22 35
23 24
24 68
25 55
26 48
27 60
28 72
29 45
30 84
31 32
32 45
33 60
34 75
35 88
36 36
37 63
38 80
39 85
40 108
41 72
42 116
43 75
44 0
45 77
46 108
47 120
48 105
49 100
50 48
51 140
52 75
53 136
54 81
55 132
56 96
57 45
58 156
59 120
60 105
61 164
62 135
63 144
64 108
65 99
66 168

List of values

[0, 4, 0, 12, 8, 20, 15, 0, 12, 24, 25, 36, 16, 21, 44, 15, 40, 36, 0, 45, 60, 35, 24, 68, 55, 48, 60, 72, 45, 84, 32, 45, 60, 75, 88, 36, 63, 80, 85, 108, 72, 116, 75, 0, 77, 108, 120, 105, 100, 48, 140, 75, 136, 81, 132, 96, 45, 156, 120, 105, 164, 135, 144, 108, 99, 168]

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

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