|
%I #5 Mar 31 2012 12:36:56
%S 0,256,6528,311364,14644480,674752576,31747280900,1482014064400,
%T 69426540922112,3248414978337424,152051978649072512,
%U 7116397401627306244,333073866254926765092,15589003682173336070436,729619114019766057116208
%N Number of nX7 binary arrays with every element neighboring horizontally or vertically both a 0 and a 1
%C Column 7 of A203285
%H R. H. Hardin, <a href="/A203284/b203284.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..1..1..0..1..1..0..0....1..0..1..1..0..0..1....1..0..0..1..0..0..0
%e ..0..1..0..0..0..0..1....1..0..0..0..1..1..1....1..0..0..1..1..1..1
%e ..0..1..0..1..1..0..1....1..0..1..1..1..0..0....1..0..0..1..1..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Dec 31 2011
| 