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Number of (n+1)X8 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one
0

%I #4 Mar 31 2012 12:35:55

%S 3606201,584520435,105022040225,22112885527475,4720827195840383

%N Number of (n+1)X8 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one

%C Column 7 of A183971

%e Some solutions for 3X8

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

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

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

%e ...

%e ...2..2..2..2..2..2..2.......3..3..2..2..3..3..2.......2..2..3..3..2..3..3...

%e ...1..1..1..1..1..1..2.......2..2..1..1..2..2..1.......2..2..3..3..2..3..4...

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 08 2011