// maximized at n = floor((2^32-1)^(1/2)) = 65535 where the expectation is
      // about 1/2.

      // For Exponent = 3, the expected number of collisions per shuffle is
      // maximized at n = floor((2^32-1)^(1/3)) = 1625 where the expectation is
      // about 1/3255.

      // For Exponent = 4, the expected number of collisions per shuffle is