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.

A030285 Palindromes whose digits do not appear in previous term.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 4
6 5
7 6
8 7
9 8
10 9
11 11
12 22
13 33
14 44
15 55
16 66
17 77
18 88
19 99
20 101
21 222
22 303
23 414
24 505
25 616
26 707
27 818
28 909
29 1111
30 2002
31 3113
32 4004
33 5115
34 6006
35 7117
36 8008
37 9119
38 20002
39 31113
40 40004
41 51115
42 60006
43 71117
44 80008
45 91119
46 200002
47 311113
48 400004

List of values

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 222, 303, 414, 505, 616, 707, 818, 909, 1111, 2002, 3113, 4004, 5115, 6006, 7117, 8008, 9119, 20002, 31113, 40004, 51115, 60006, 71117, 80008, 91119, 200002, 311113, 400004]