A237316 - OEIS

%I #4 Feb 06 2014 06:13:15

%S 81,2108,107572,12331794,2926294296,1321644953390,1305716399716870,

%T 4234337234201829714

%N Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

%C Diagonal of A237324

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 06 2014