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.

A299972 Lexicographic first sequence of positive integers such that a(n) + a(n+1) has a digit 2, and no term occurs twice.

Table of values

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

List of values

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

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

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