A232341 - OEIS

%I #4 Nov 22 2013 11:53:45

%S 1,754,22228,76630,2510674,9298730,318521414,1241196022,41049614014,

%T 168217753216,5314116600322,22881089512316,689018292976294,

%U 3108875283706072,89394192873266794,421515136439868122

%N Number of 7Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal

%C Row 7 of A232335

%H R. H. Hardin, <a href="/A232341/b232341.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 22 2013