This is for the Hexa-Fibonacci sequence

We try up to the , 500000, terms, those for which it is does not suffice to f\
    ind a period are labeled FAIL



    The first, 16, terms of the Pisano periods mod m, starting with m=1 are

[1, 7, 728, 14, 208, 728, 342, 28, 2184, 1456, 354312, 728, 9520, 2394, 1456, 56]


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                        This took, 159562.320, second.