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A261941 Number of (n+1)X(6+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. 0

%I #3 Sep 06 2015 07:54:23

%S 0,5826,72186,3016874,52973290,1247810761,30673550964

%N Number of (n+1)X(6+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 Column 6 of A261942.

%e Some solutions for n=3

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

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

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

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

%Y Cf. A261942.

%K nonn

%O 1,2

%A _R. H. Hardin_, Sep 06 2015

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Last modified April 16 12:52 EDT 2024. Contains 371711 sequences. (Running on oeis4.)