# Kolakoski sequence

> infinite sequence of symbols {1,2} that is its own run-length encoding and the prototype for an infinite family of related sequences

**Wikidata**: [Q6427013](https://www.wikidata.org/wiki/Q6427013)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kolakoski_sequence)  
**Source**: https://4ort.xyz/entity/kolakoski-sequence