  We describe factor frequencies of the generalized Thue-Morse word t_{b,m}
defined for integers b greater than 1, m greater than 0 as the fixed point
starting in 0 of the morphism \phi_{b,m} given by
\phi_{b,m}(k)=k(k+1)...(k+b-1), where k = 0,1,..., m-1 and where the letters
are expressed modulo m. We use the result of A. Frid, On the frequency of
factors in a D0L word, Journal of Automata, Languages and Combinatorics 3
(1998), 29-41 and the study of generalized Thue-Morse words by S. Starosta,
Generalized Thue-Morse words and palindromic richness, arXiv:1104.2476v2
[math.CO].
