A183826 - OEIS

%I #4 Mar 31 2012 12:35:54

%S 11390625,376152548283,12225396762980829,399185865558804067443,

%T 13018181193595377140956551

%N 1/256 the number of (n+1)X8 0..3 arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor

%C Column 7 of A183827

%e Some solutions with upper left block zero for 3X8

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 07 2011