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A188978
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Number of nX4 array permutations with each element moved but moved no more than a city block distance of two
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1
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4, 900, 295264, 54113236, 10523263424, 2184414516364, 446454227170968, 90637093836201284, 18447462299508458652, 3757678170703167716673, 765103415743509162801632, 155767055441358236289145024
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