A236503 - OEIS

%I #4 Jan 27 2014 05:03:05

%S 27458,1116232,46503900,1936913190,81160939773,3386470375460,

%T 141742500729330,5916603281898744,247569265457806674,

%U 10338799533678138632,432437733506750819702,18063888826404000032848

%N Number of (n+1)X(3+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock

%C Column 3 of A236505

%H R. H. Hardin, <a href="/A236503/b236503.txt">Table of n, a(n) for n = 1..172</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 27 2014