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Number of (n+1)X8 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards
0

%I #4 Mar 31 2012 12:37:09

%S 256692580,618727630440,1161408617136336,1815101219263424368,

%T 2520284777347122442980

%N Number of (n+1)X8 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards

%C Column 7 of A205935

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 01 2012