A205933 - OEIS

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

%S 28259556,29707151720,24368030395844,16821962566961468,

%T 10397256424705262728,5953229517409280684864

%N Number of (n+1)X7 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards

%C Column 6 of A205935

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 01 2012