A181036 - OEIS

%I #3 Dec 18 2015 18:17:26

%S 1,2,6,108,2262,280212,46080957,36405166265,47512264085495,

%T 240784798489897626,2425732417937080443932

%N Number of n X n binary matrices with no initial bit string in any row or column divisible by 6

%C Diagonal of A181039

%e Some solutions for 4X4

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Sep 30 2010