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.

A228407 The digits of a(n) and a(n+1) together can be reordered to form a palindromic integer; the lexicographically earliest injective sequence of nonnegative integers with this property.

Table of values

n a(n)
0 0
1 11
2 1
3 10
4 100
5 12
6 2
7 20
8 101
9 22
10 3
11 13
12 31
13 103
14 30
15 110
16 33
17 4
18 14
19 41
20 104
21 40
22 114
23 24
24 42
25 112
26 21
27 102
28 120
29 201
30 210
31 1000
32 105
33 15
34 5
35 25
36 52
37 115
38 35
39 53
40 113
41 23
42 32
43 121
44 26
45 6
46 16
47 61
48 106
49 60
50 116
51 36
52 63
53 131
54 34
55 43
56 134
57 143
58 314

List of values

[0, 11, 1, 10, 100, 12, 2, 20, 101, 22, 3, 13, 31, 103, 30, 110, 33, 4, 14, 41, 104, 40, 114, 24, 42, 112, 21, 102, 120, 201, 210, 1000, 105, 15, 5, 25, 52, 115, 35, 53, 113, 23, 32, 121, 26, 6, 16, 61, 106, 60, 116, 36, 63, 131, 34, 43, 134, 143, 314]