A236871 - OEIS

%I #4 Feb 01 2014 07:05:36

%S 4131,46023,499947,5913287,68777909,826928057,9850162103,119172787543,

%T 1434649920667,17412329016137,210815312004247,2564264418734901,

%U 31158752923844559,379690905863880779,4625670882160203303

%N Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal

%C Column 4 of A236875

%H R. H. Hardin, <a href="/A236871/b236871.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 01 2014