A217271 - OEIS

%I #4 Sep 29 2012 06:57:00

%S 16,20736,17640000,14755689729,12276607432401,10211121295308649,

%T 8491624540729737796,7061648944253957079481,5872435140472364430803929,

%U 4883489824271582246264899984,4061085890163124328387958867561

%N Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor

%C Column 6 of A217273

%H R. H. Hardin, <a href="/A217271/b217271.txt">Table of n, a(n) for n = 1..15</a>

%e Some solutions for n=3

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

%e ..0..0..4..4..1..2....0..1..1..1..2..0....0..1..2..1..1..3....0..1..1..1..1..0

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Sep 29 2012