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.

A171576 a(n) = abs(n-th noncomposite number minus n-th even nonprime number).

Table of values

n a(n)
1 1
2 2
3 3
4 3
5 3
6 1
7 1
8 1
9 1
10 3
11 7
12 7
13 11
14 13
15 13
16 15
17 19
18 23
19 23
20 27
21 29
22 29
23 33
24 35
25 39
26 45
27 47
28 47
29 49
30 49
31 51
32 63
33 65
34 69
35 69
36 77
37 77
38 81
39 85
40 87
41 91
42 95
43 95
44 103
45 103
46 105
47 105
48 115
49 125
50 127
51 127
52 129
53 133
54 133
55 141
56 145
57 149
58 153
59 153
60 157
61 159
62 159
63 167
64 179
65 181

List of values

[1, 2, 3, 3, 3, 1, 1, 1, 1, 3, 7, 7, 11, 13, 13, 15, 19, 23, 23, 27, 29, 29, 33, 35, 39, 45, 47, 47, 49, 49, 51, 63, 65, 69, 69, 77, 77, 81, 85, 87, 91, 95, 95, 103, 103, 105, 105, 115, 125, 127, 127, 129, 133, 133, 141, 145, 149, 153, 153, 157, 159, 159, 167, 179, 181]

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

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