%I #4 Sep 22 2015 09:26:00
%S 2,4,270,18228,9401742,15231780324,114043973318270,
%T 3210825131209677780,376663000295700912108942,
%U 173793136176160952800090974444,324528460592527213101965898811701630
%N Number of (n+1)X(n+1) 0..1 arrays with each row divisible by 3 and column not divisible by 3, read as a binary number with top and left being the most significant bits.
%C Diagonal of A262420.
%e Some solutions for n=4
%e ..1..0..1..0..1....1..1..1..1..0....1..1..0..0..0....1..0..1..0..1
%e ..0..1..1..0..0....0..0..0..0..0....1..1..0..1..1....0..1..1..0..0
%e ..0..0..1..1..0....1..0..1..0..1....1..1..1..1..0....0..0..0..1..1
%e ..0..0..0..0..0....1..1..0..0..0....1..0..0..1..0....1..1..0..1..1
%e ..0..0..0..0..0....1..1..0..0..0....1..1..0..0..0....1..1..1..1..0
%Y Cf. A262420.
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 22 2015