|
%I #5 Mar 31 2012 12:37:14
%S 65,4225,105936,2346621,41429335,683241763,10432265840,154004233160,
%T 2204564726744,31044446020755,431344655622502,5945601513772082,
%U 81452204001027552,1111514446777014206,15124130993994618127
%N Number of nX7 0..1 arrays avoiding 0 1 0 horizontally and 0 1 1 vertically
%C Column 7 of A207000
%H R. H. Hardin, <a href="/A206999/b206999.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0..0..1..1..0..1....1..0..1..1..0..0..0....1..0..1..1..1..0..0
%e ..1..0..0..1..1..1..1....1..1..1..0..0..0..0....0..1..1..1..1..0..0
%e ..0..0..1..1..1..0..0....1..0..0..0..1..1..1....0..0..1..1..0..1..1
%e ..1..1..0..1..1..1..1....0..0..1..1..0..0..0....0..0..1..1..1..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 14 2012
| 