182001domain: NAppears in sequencesLength of n-th string generated by a Kolakoski(9,1) rule starting with a(1)=1.at n=13A095344Numbers m such that abs(K(m+1) - K(m)) = 2, and both m and m+1 are squarefree (A005117), where K(m) = A002034(m) is the Kempner function.at n=38A346212