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%I #3 Nov 19 2012 17:53:16
%S 1,65,436,3617,28154,218838,1709703,13384389,104853209,820979848,
%T 6427053212,50316786006,393951173336,3084409493138,24148717621856,
%U 189066773722441,1480260894360447,11589420628440440
%N Unchanging value maps: number of 4Xn binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 4Xn array
%C Row 4 of A219421
%e Some solutions for n=3
%e ..1..0..0....0..0..1....1..0..1....0..0..1....1..1..1....1..0..0....1..1..1
%e ..0..0..1....0..0..1....0..0..1....1..0..0....1..0..1....0..0..1....1..1..1
%e ..0..0..1....1..0..0....1..0..0....1..0..0....0..0..0....1..0..0....1..1..0
%e ..1..0..0....1..0..1....0..1..1....1..0..0....0..0..0....0..0..0....0..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Nov 19 2012
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