A237925 - OEIS

%I #4 Feb 15 2014 18:02:42

%S 66512,1365710,26467386,533139326,10733520644,216277393666,

%T 4367587791906,88165105669262,1776627602822848,35829418798609410,

%U 723198677655458678,14590360107851814002,294210382253305967200,5934614673851329576446

%N Number of (n+1)X(4+1) 0..3 arrays with the maximum plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

%C Column 4 of A237927

%H R. H. Hardin, <a href="/A237925/b237925.txt">Table of n, a(n) for n = 1..109</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 15 2014