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%I #3 Sep 06 2015 07:56:29
%S 0,5,218,746,10906,72186,588090,3656900,26647829,180803752,1093944096,
%T 6533839983,43705331783
%N Number of (3+1)X(n+1) 0..1 arrays with each row nonprime and column prime, read as a binary number with top and left being the most significant bits.
%C Row 3 of A261942.
%e Some solutions for n=4
%e ..0..0..0..0..0....1..1..1..1..0....1..1..0..0..0....0..1..1..1..0
%e ..0..1..1..1..1....1..0..0..0..0....1..0..1..0..0....1..0..1..0..0
%e ..1..0..1..0..0....0..1..1..1..1....0..1..1..1..1....1..1..0..1..1
%e ..0..1..1..1..1....1..1..1..1..0....1..1..1..1..0....1..1..1..1..0
%Y Cf. A261942.
%K nonn
%O 1,2
%A _R. H. Hardin_, Sep 06 2015