A206205 - OEIS

%I #5 Mar 31 2012 12:37:10

%S 468968,192808,145208,337896,713408,1080648,3270240,7008160,10936160,

%T 33660800,72736960,113216800,339966080,729156480,1132733728,

%U 3399739520,7291568000,11327337280,33997395200,72915680000,113273372800

%N Number of (n+1)X8 0..3 arrays with every 2X3 or 3X2 subblock having exactly one clockwise edge increases

%C Column 7 of A206206

%H R. H. Hardin, <a href="/A206205/b206205.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 10*a(n-3) for n>17

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 04 2012