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.

A114880 a(n) is the largest base-3 string such that the n-th number coprime to 3 does not divide any substring of a(n).

Table of values

n a(n)
2 1
3 212
4 2111
5 22222
6 21112
7 222111222
8 212121212
9 22112121
10 212221222212
11 2221221221222
12 222222222222222
13 22222222222222222
14 1121212211122121211
15 2121212121212121212
16 112221112211111121
17 21111111111111111111

List of values

[1, 212, 2111, 22222, 21112, 222111222, 212121212, 22112121, 212221222212, 2221221221222, 222222222222222, 22222222222222222, 1121212211122121211, 2121212121212121212, 112221112211111121, 21111111111111111111]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.