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A261754 Number of (n+1)X(1+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits. 0

%I

%S 2,4,0,11,0,31,0,0,0,0,0,1028,0,0,0,12251,0,43390,0,0,0,0,0,0,0,0,0,0,

%T 0

%N Number of (n+1)X(1+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.

%C Column 1 of A261761.

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A261761.

%K nonn

%O 1,1

%A _R. H. Hardin_, Aug 31 2015

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Last modified October 17 17:21 EDT 2021. Contains 348065 sequences. (Running on oeis4.)