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.

A071161 Integers whose decimal expansion satisfies the condition that if we read each term from the left to right (the most significant to the least significant digit) then each nonzero digit gives a distance to the next nonzero digit to right (with a cyclic wrap-over from the least-significant to the most significant nonzero digit).

Table of values

n a(n)
0 0
1 1
2 11
3 20
4 111
5 120
6 201
7 300
8 1111
9 1120
10 1201
11 1300
12 2011
13 2020
14 3001
15 4000
16 11111
17 11120
18 11201
19 11300
20 12011
21 12020
22 13001
23 14000
24 20111
25 20120
26 20201
27 20300
28 30011
29 30020
30 40001
31 50000
32 111111
33 111120
34 111201
35 111300
36 112011

List of values

[0, 1, 11, 20, 111, 120, 201, 300, 1111, 1120, 1201, 1300, 2011, 2020, 3001, 4000, 11111, 11120, 11201, 11300, 12011, 12020, 13001, 14000, 20111, 20120, 20201, 20300, 30011, 30020, 40001, 50000, 111111, 111120, 111201, 111300, 112011]