OFFSET
1,1
LINKS
Robert H. Barbour, Two-dimensional Four Color Cellular Automaton: Surface Explorations, Complex Systems, 17 (2007), 103-112.
Palash Sarkar, A Brief History of Cellular Automata, ACM Computing Surveys, Vol. 32 (2000), No. 1 March, p. 80-107.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Robert H Barbour, Feb 14 2005
EXTENSIONS
Terms a(19) and beyond from Andrey Zabolotskiy, Jan 06 2023
STATUS
approved