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.

A100373 Lexicographically earliest increasing sequence of composite numbers such that the digits of a(n) do not appear in a(n-1).

Table of values

n a(n)
1 4
2 6
3 8
4 9
5 10
6 22
7 30
8 42
9 50
10 62
11 70
12 81
13 90
14 111
15 200
16 314
17 500
18 611
19 700
20 812
21 900
22 1111
23 2000
24 3111
25 4000
26 5111
27 6000
28 7111
29 8000
30 9111
31 20000
32 31111
33 40000
34 51111
35 60000
36 71111
37 80000
38 91111
39 200000
40 311113
41 400000
42 511112
43 600000
44 711111

List of values

[4, 6, 8, 9, 10, 22, 30, 42, 50, 62, 70, 81, 90, 111, 200, 314, 500, 611, 700, 812, 900, 1111, 2000, 3111, 4000, 5111, 6000, 7111, 8000, 9111, 20000, 31111, 40000, 51111, 60000, 71111, 80000, 91111, 200000, 311113, 400000, 511112, 600000, 711111]