A202491 - OEIS

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

%S 174720,2822400,81920160,2377732644,56953820952,1364214656016,

%T 34683335205048,881777464888644,22015082631334650,549644193193005625,

%U 13795021325301502000,346228734374528569600,8677470058423398780000

%N Number of (n+2)X9 binary arrays avoiding patterns 000 and 010 in rows, columns and nw-to-se diagonals

%C Column 7 of A202492

%H R. H. Hardin, <a href="/A202491/b202491.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 20 2011