OFFSET
1,1
REFERENCES
S. Wolfram, Universality and cpmplexity in cellular automata, Physica 10D (1984), 1-35 (reprinted in Celluar Automata, ed. D. Farmer et al., North-Holland, 1984).
CROSSREFS
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Apr 29 2010
STATUS
approved