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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.

A165971 The n-th odd nonprime minus the n-th even nonprime.

Table of values

n a(n)
1 1
2 5
3 9
4 13
5 15
6 15
7 19
8 19
9 21
10 25
11 27
12 27
13 29
14 29
15 33
16 33
17 35
18 39
19 39
20 41
21 43
22 43
23 45
24 45
25 45
26 47
27 51
28 55
29 57
30 57
31 57
32 57
33 57
34 57
35 59
36 61
37 61
38 65
39 65
40 65
41 65
42 69
43 69
44 71
45 71
46 73
47 75
48 75
49 77
50 77
51 81
52 81
53 81
54 81
55 85
56 89
57 89
58 89
59 89
60 89
61 91
62 91
63 91
64 91
65 91
66 93
67 97
68 99
69 99
70 103

List of values

[1, 5, 9, 13, 15, 15, 19, 19, 21, 25, 27, 27, 29, 29, 33, 33, 35, 39, 39, 41, 43, 43, 45, 45, 45, 47, 51, 55, 57, 57, 57, 57, 57, 57, 59, 61, 61, 65, 65, 65, 65, 69, 69, 71, 71, 73, 75, 75, 77, 77, 81, 81, 81, 81, 85, 89, 89, 89, 89, 89, 91, 91, 91, 91, 91, 93, 97, 99, 99, 103]

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

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