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.

A155875 Smallest positive composite number such that a(n) - n is also composite.

Table of values

n a(n)
0 4
1 9
2 6
3 9
4 8
5 9
6 10
7 15
8 12
9 15
10 14
11 15
12 16
13 21
14 18
15 21
16 20
17 21
18 22
19 25
20 24
21 25
22 26
23 27
24 28
25 33
26 30
27 33
28 32
29 33
30 34
31 35
32 36
33 39
34 38
35 39
36 40
37 45
38 42
39 45
40 44
41 45
42 46
43 49
44 48
45 49
46 50
47 51
48 52
49 55
50 54
51 55
52 56
53 57
54 58
55 63
56 60
57 63
58 62
59 63
60 64
61 65
62 66
63 69
64 68
65 69
66 70

List of values

[4, 9, 6, 9, 8, 9, 10, 15, 12, 15, 14, 15, 16, 21, 18, 21, 20, 21, 22, 25, 24, 25, 26, 27, 28, 33, 30, 33, 32, 33, 34, 35, 36, 39, 38, 39, 40, 45, 42, 45, 44, 45, 46, 49, 48, 49, 50, 51, 52, 55, 54, 55, 56, 57, 58, 63, 60, 63, 62, 63, 64, 65, 66, 69, 68, 69, 70]

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

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