22588608domain: NAppears in sequencesTriangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*8^j.at n=30A038274Numbers k such that phi(tau(k)) = rad(k).at n=14A173617Ordered union of the sets {h^6, h >=1} and {3*k^6, k >=1}.at n=29A249097