A202468 - OEIS

%I #5 Mar 31 2012 12:36:48

%S 317179,18374521,1044865367,58746383721,3323590649777,187820723381421,

%T 10610932604054547,599616560193259281,33881738532796270907,

%U 1914496303093962715299,108180387260313623312899

%N Number of (n+2)X7 binary arrays with no more than two of any consecutive three bits set in any row or column

%C Column 5 of A202471

%H R. H. Hardin, <a href="/A202468/b202468.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 19 2011