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Number of n X 4 arrays of occupancy after each element moves to some horizontal or vertical neighbor.
#10 by Sean A. Irvine at Fri Oct 03 17:23:02 EDT 2025
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#9 by Sean A. Irvine at Fri Oct 03 17:23:00 EDT 2025
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#8 by Wesley Ivan Hurt at Fri Apr 23 09:39:23 EDT 2021
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#7 by Wesley Ivan Hurt at Fri Apr 23 09:38:42 EDT 2021
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#6 by R. H. Hardin at Sat Sep 29 06:55:48 EDT 2012
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#5 by R. H. Hardin at Sat Sep 29 06:55:44 EDT 2012
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#4 by R. H. Hardin at Sat Sep 29 06:54:27 EDT 2012
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#3 by R. H. Hardin at Sat Sep 29 06:54:25 EDT 2012
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#2 by R. H. Hardin at Sat Sep 29 06:54:06 EDT 2012
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#1 by R. H. Hardin at Sat Sep 29 06:48:44 EDT 2012
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