OFFSET
1,2
COMMENTS
Strings are obtained using the Kolakoski substitution and the additional rule : start with 1 if previous string begins with 2, start with 2 if previous string begins with 1.
FORMULA
EXAMPLE
1-->2-->11-->21-->112-->2122
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Oct 12 2005
STATUS
approved