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%I #3 Sep 11 2015 09:42:37
%S 17,195,2426,27414,286164,2924668,27440631,267391114,2501143873
%N Number of (2+1)X(n+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits.
%C Row 2 of A262109.
%e Some solutions for n=4
%e ..0..0..1..0..1....0..2..1..1..0....1..0..1..0..1....2..1..2..0..1
%e ..0..2..1..2..0....0..1..0..0..0....0..2..2..1..0....0..2..1..1..2
%e ..2..1..1..1..2....2..2..2..2..2....2..1..2..0..2....1..2..2..0..2
%Y Cf. A262109.
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 11 2015
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