A184473 - OEIS

%I #5 Mar 31 2012 12:36:00

%S 45585,62213,86575,127689,247879,520289,1219455,3727073,11454631,

%T 35847321,132023695,462435665,1581583095,6139850633,22407327775,

%U 78976349889,312058001959,1156657902329,4125792115215,16415153428433

%N 1/6 the number of (n+2)X7 0..2 arrays with each 3X3 subblock containing one of one value, four of another, and four of the last

%C Column 5 of A184477

%H R. H. Hardin, <a href="/A184473/b184473.txt">Table of n, a(n) for n = 1..28</a>

%e Some solutions with a(1,1)=0 for 4X7

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 15 2011