OFFSET
1,1
COMMENTS
An antipower period of a length-n string x is a divisor l of n such that if you factor x as the concatenation of (n/l) blocks of length l, then all these blocks are distinct. For example, 000110 has antipower periods 2,3, and 6, which is the most possible for a string of length 6, while 000001 has antipower periods 3 and 6 only.
LINKS
G. Fici, A. Restivo, M. Silva, and L. Q. Zamboni, Anti-powers in infinite words, arxiv preprint, 1606.02868v1 [cs.DM], June 9 2016.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jeffrey Shallit, Jun 23 2016
EXTENSIONS
a(19)-a(32) from Bjarki Ágúst Guðmundsson, Jul 07 2016
STATUS
approved