Sick, slick...and imperfect. :-)
When hashing random elements you expect to see a certain
number of collisions in buckets. The second one in the
bucket will be ordered after the first element. Therefore
your algorithm is not a perfect shuffle, and the rising
sequences test that I described in RE (tilly) 2: Randomize an array should be
able to detect that.
But even so, I like it. :-)
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