116986domain: NAppears in sequencesNumber of powerful numbers between 2^(n-1)+1 and 2^n.at n=35A062761G.f.: -2*(-2 - 11*x - 4*x^2 + x^3)/(x - 1)^4.at n=27A152110Numbers n such that prime(n) + {1, 2, 3, 4, 5, 6} are all products of the same number of primes (not necessarily all distinct).at n=10A255202