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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.

A209233 A two-digit Look-and-Say sequence starting with 11: each term summarizes the increasing two-digit substrings of the previous term.

Table of values

n a(n)
0 11
1 111
2 211
3 111121
4 311112121
5 311212221131
6 211212113221222231
7 211312113421422123131132
8 311212413114421122123331132134242
9 411412313114421122123224331132233134141342144
10 411312413414321322323124431232233234441242143244

List of values

[11, 111, 211, 111121, 311112121, 311212221131, 211212113221222231, 211312113421422123131132, 311212413114421122123331132134242, 411412313114421122123224331132233134141342144, 411312413414321322323124431232233234441242143244]

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

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