A238142 - OEIS

A238142

Number of (n+1)X(3+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 08:18:16

%S 12981,292176,6799917,160133604,3756442630,88011173220,2067349618435,

%T 48473348771212,1137529676425732,26670004318339992,626193786703761388,

%U 14680761625172316224,344614066748843613158,8079594620572921715820

%N Number of (n+1)X(3+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 3 of A238145

%H R. H. Hardin, <a href="/A238142/b238142.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 18 2014