|
%I #4 Feb 07 2014 04:56:06
%S 3840,20812,116880,723928,4429368,27053348,165467520,1026092552,
%T 6319203136,38680736568,237385725976,1476526709904,9118194049424,
%U 55928190691948,344012027433208,2146405306742592,13288265907921064
%N Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
%C Column 4 of A237375
%H R. H. Hardin, <a href="/A237371/b237371.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..1..0..0..0....1..2..2..1..1....1..0..1..2..1....2..0..2..0..2
%e ..0..1..1..1..0....1..1..1..1..1....1..1..0..0..1....0..2..1..1..2
%e ..2..0..0..1..0....2..2..1..1..0....1..1..1..1..1....1..0..1..0..1
%e ..1..1..2..1..1....0..1..0..1..0....0..1..1..0..0....0..1..1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 07 2014
| 