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Number of 6Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4
0

%I #3 Apr 04 2014 10:22:01

%S 22,571,18307,663122,25831820,1069763402,46251359120,2092454198295,

%T 97243617514832,4655473468942780,225559938510544139

%N Number of 6Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4

%C Row 6 of A240364

%e Some solutions for n=3

%e ..0..3..3....0..3..1....0..3..3....0..3..1....0..3..3....0..0..0....3..1..0

%e ..0..3..3....0..3..2....3..3..2....0..0..2....0..0..2....0..3..1....0..0..0

%e ..0..3..2....3..1..3....0..2..0....0..0..0....3..3..1....0..0..0....3..1..0

%e ..0..0..0....0..3..2....3..1..0....0..3..3....0..2..2....3..3..0....3..3..0

%e ..3..1..0....0..3..1....3..2..1....0..3..3....3..3..1....0..2..0....0..2..1

%e ..3..2..1....3..1..0....0..3..2....3..1..2....3..3..2....0..0..0....0..3..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 04 2014