OFFSET
1,2
COMMENTS
The constant describes the asymptotic behavior of the number of ternary squarefree words.
The next term a(6) is known to be either 6 or 5 (in the latter case it is followed by a(7) = 9).
LINKS
A. M. Shur, Numerical values of the growth rates of power-free languages, arXiv:1009.4415 [cs.FL], 2010.
Eric Weisstein's World of Mathematics, Squarefree Word
EXAMPLE
1.3017...
CROSSREFS
KEYWORD
AUTHOR
Vladimir Reshetnikov, May 16 2016
STATUS
approved