login
Number of (n+1)X8 0..1 arrays with the number of equal 2X2 subblock diagonal pairs and equal antidiagonal pairs differing from each horizontal or vertical neighbor, and new values 0..1 introduced in row major order
1

%I #5 Mar 31 2012 12:37:05

%S 2228,5700,13032,35928,98924,283148,811604,2316508,6722572,19126684,

%T 55931004,158866012,466472412,1324163452,3895852628,11060567268,

%U 32569903236,92510460284,272504460204,774392667980,2281374454932

%N Number of (n+1)X8 0..1 arrays with the number of equal 2X2 subblock diagonal pairs and equal antidiagonal pairs differing from each horizontal or vertical neighbor, and new values 0..1 introduced in row major order

%C Column 7 of A205226

%H R. H. Hardin, <a href="/A205225/b205225.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 23 2012