307546875domain: NAppears in sequencesa(n) = (4*n^2 - 1)^3.at n=12A069076Numbers whose sum of exponents is equal to the product of prime factors.at n=32A071174Powers k^m, m > 2, where k is an Achilles number.at n=10A390436Powers k^m, m > 1, where k is an odd Achilles number.at n=17A391375