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%I #4 Sep 11 2015 13:31:03
%S 5,44,2802,473294,315759093
%N Number of (n+1)X(n+1) 0..2 arrays with each row and column prime, read as a base 3 number with top and left being the most significant digits.
%C Diagonal of A262122.
%e Some solutions for n=3
%e ..1..2..0..2....2..0..1..2....0..0..1..2....0..0..0..2....0..1..2..2
%e ..0..1..1..1....1..1..2..1....2..1..2..2....2..2..0..1....2..1..1..1
%e ..1..2..2..2....1..2..2..2....1..0..0..2....1..1..0..1....0..0..1..2
%e ..1..2..2..2....1..2..2..2....2..2..2..1....2..2..2..1....1..1..1..2
%Y Cf. A262122.
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 11 2015