%I #4 Mar 31 2012 12:36:04
%S 97,677283,1610684397,4840082975532,13435825601048421,
%T 38514280297010210802
%N 1/4 the number of nX8 0..3 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors
%C Column 8 of A186168
%e Some solutions for 3X8 with a(1,1)=0
%e ..0..0..0..0..2..1..1..0....0..0..0..0..3..0..3..3....0..0..0..0..0..3..3..0
%e ..0..1..1..2..2..3..1..0....0..1..1..0..3..0..0..3....0..1..1..2..2..1..0..0
%e ..0..0..0..0..0..3..3..0....0..0..0..0..3..3..0..0....0..0..0..0..2..1..3..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 13 2011
|