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Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18
0

%I #3 Dec 18 2013 08:44:50

%S 1995424,4923910,11510748,39038268,117312896,533896296,1997753492,

%T 12585162304,57382924232

%N Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18

%C Column 7 of A233997

%e Some solutions for n=1

%e ..0..6..0..6..0..0..1..0....0..3..6..1..5..6..5..5....0..3..6..2..0..0..5..5

%e ..3..3..3..3..3..5..4..5....3..6..1..4..0..5..0..2....3..6..1..5..5..3..0..6

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 18 2013