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A262413 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.

%I A262413 #4 Sep 22 2015 09:26:00
%S A262413 2,4,270,18228,9401742,15231780324,114043973318270,
%T A262413 3210825131209677780,376663000295700912108942,
%U A262413 173793136176160952800090974444,324528460592527213101965898811701630
%N A262413 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 A262413 Diagonal of A262420.
%e A262413 Some solutions for n=4
%e A262413 ..1..0..1..0..1....1..1..1..1..0....1..1..0..0..0....1..0..1..0..1
%e A262413 ..0..1..1..0..0....0..0..0..0..0....1..1..0..1..1....0..1..1..0..0
%e A262413 ..0..0..1..1..0....1..0..1..0..1....1..1..1..1..0....0..0..0..1..1
%e A262413 ..0..0..0..0..0....1..1..0..0..0....1..0..0..1..0....1..1..0..1..1
%e A262413 ..0..0..0..0..0....1..1..0..0..0....1..1..0..0..0....1..1..1..1..0
%Y A262413 Cf. A262420.
%K A262413 nonn
%O A262413 1,1
%A A262413 _R. H. Hardin_, Sep 22 2015