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.

A253074 Lexicographically earliest sequence of distinct numbers such that a(n-1)+a(n) is not prime.

Table of values

n a(n)
1 0
2 1
3 3
4 5
5 4
6 2
7 6
8 8
9 7
10 9
11 11
12 10
13 12
14 13
15 14
16 16
17 17
18 15
19 18
20 20
21 19
22 21
23 23
24 22
25 24
26 25
27 26
28 28
29 27
30 29
31 31
32 32
33 30
34 33
35 35
36 34
37 36
38 38
39 37
40 39
41 41
42 40
43 42
44 43
45 44
46 46
47 45
48 47
49 48
50 50
51 49
52 51
53 53
54 52
55 54
56 56
57 55
58 57
59 58
60 59
61 60
62 61
63 62
64 63
65 65
66 64
67 66

List of values

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

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

Content is available under The OEIS End-User License Agreement.