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%I #3 Feb 18 2013 05:38:22
%S 16,232,3968,63488,1048576,16776896,268369920,4294961152,68702608704,
%T 1099511627776,17592160878592,281474976700416,4503599627370496
%N Sum of neighbor maps: number of 4Xn binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal and antidiagonal neighbors in a random 0..2 4Xn array
%C Row 4 of A222386
%e Some solutions for n=3
%e ..0..1..0....1..0..1....1..1..1....1..1..0....1..0..1....1..0..0....0..1..0
%e ..0..1..0....0..0..0....1..0..1....1..0..1....1..0..0....0..1..1....0..0..1
%e ..0..0..0....1..1..0....0..1..0....1..0..1....0..0..1....0..1..0....1..1..0
%e ..0..0..0....0..1..1....1..0..1....1..1..1....1..1..0....1..0..1....1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 18 2013
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