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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.

A366197 Lexicographically earliest permutation of the nonnegative integers such that the absolute difference between the digitsum of a(n) and the digitsum of a(n+2) = 1.

Table of values

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

List of values

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

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

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