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.

A097481 Write the positive even integers on labels in numerical order, forming an infinite sequence L. Consider the succession of digits of L: 2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 3 0 ... (A036211). This sequence gives a derangement of L that produces the same succession of digits, subject to the constraint that the smallest unused label must be used that does not lead to a contradiction.

Table of values

n a(n)
1 24
2 6
3 8
4 10
5 12
6 14
7 16
8 18
9 20
10 2
11 224
12 26
13 28
14 30
15 32
16 34
17 36
18 38
19 40
20 4
21 244
22 46
23 48
24 50
25 52
26 54
27 56
28 58
29 60
30 62
31 64
32 66
33 68
34 70
35 72
36 74
37 76
38 78
39 80
40 82
41 84
42 86
43 88
44 90
45 92
46 94
47 96
48 98
49 100
50 102
51 104
52 106
53 108
54 110
55 112
56 114
57 116
58 118
59 120
60 122
61 124
62 126
63 128
64 130
65 132

List of values

[24, 6, 8, 10, 12, 14, 16, 18, 20, 2, 224, 26, 28, 30, 32, 34, 36, 38, 40, 4, 244, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132]