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#Life 1.05

#D Pseudorandom number generator with p120 logic

#D A glider stream is emitted representing a pseudorandom binary

#D sequence satisfying the recursion  a[n] = a[n-1] XOR a[n-11].

#D (By spreading out the pattern, the 11 can be changed.)  The

#D sequence has period 1533, so the gun has period 120*1533 = 183960.

#D Dean Hickerson, dean@ucdmath.ucdavis.edu  3/21/92

#N

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