A236659 - OEIS

%I #4 Jan 29 2014 14:31:09

%S 518,5538,58236,631692,6798520,72887588,782409904,8415647974,

%T 90402273416,970965716040,10431604290540,112087441699440,

%U 1204151665317648,12936226566648792,138981458800738608,1493166954450047964

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

%C Column 2 of A236663

%H R. H. Hardin, <a href="/A236659/b236659.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 29 2014