Lower bounds for the discrepancy of inversive congruential pseudorandom numbers

The inversive congruential method is a uniform pseudorandom number generator which was introduced recently. For a prime modulus p the discrepancy D(k) of k-tuples of successive pseudorandom numbers generated by this method determines the statistical independence properties of these pseudorandom numbers. It was shown earlier by the author that D(k) O(p-1/2(logp)k) for 2 2.