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A262121 Number of (n+1)X(5+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. 0

%I #3 Sep 11 2015 13:32:48

%S 133,2632,218493,1726432,315759093

%N Number of (n+1)X(5+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 Column 5 of A262122.

%e Some solutions for n=2

%e ..1..2..0..1..1..2....0..0..0..0..0..2....0..0..0..1..1..1....0..2..1..0..0..2

%e ..0..0..0..0..1..0....1..1..1..2..1..1....0..2..1..2..1..1....2..1..0..1..0..1

%e ..2..1..2..2..1..1....0..0..0..1..0..2....2..1..2..2..1..1....1..2..2..0..2..2

%Y Cf. A262122.

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 11 2015

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Last modified April 23 05:37 EDT 2024. Contains 371906 sequences. (Running on oeis4.)