OFFSET
1,2
COMMENTS
LINKS
James D. Currie and Narad Rampersad, Infinite words containing squares at every position, arXiv:0803.1189 [math.CO], 2008; or also, RAIRO-Theor. Inf. Appl. 44, 113-124 (2010).
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 05 2013
STATUS
approved