A238143 - OEIS

A238143

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

%I #4 Feb 18 2014 08:19:00

%S 94458,3817216,160133604,6863396252,292335443616,12430740302096,

%T 529306438594610,22541568260503428,959479531581877652,

%U 40849286077190837310,1739380607057160297494,74053634588756994371164

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

%C Column 4 of A238145

%H R. H. Hardin, <a href="/A238143/b238143.txt">Table of n, a(n) for n = 1..85</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 18 2014