70134domain: NAppears in sequencesNumber of ternary cubefree words of length n.at n=11A051042Number of subsets of the first n primes whose elements have a prime root-mean-square.at n=25A339556Expansion of g^2/(1 - x*g)^3, where g = 1+x*g^3 is the g.f. of A001764.at n=7A391172