|
%I #3 Sep 06 2015 07:53:49
%S 46,1215,10906,351513,5488030,115507073,2499416567
%N Number of (n+1)X(5+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 5 of A261942.
%e Some solutions for n=3
%e ..0..0..1..0..0..1....0..1..1..0..1..0....0..0..0..0..0..0....0..1..0..0..1..0
%e ..1..0..0..0..0..1....1..0..0..0..0..0....1..0..0..1..0..0....0..0..1..1..1..1
%e ..0..1..1..1..1..0....1..1..1..1..1..1....0..1..1..0..1..1....1..1..0..0..0..0
%e ..1..1..1..0..0..1....1..1..1..1..1..0....1..0..1..1..0..0....1..1..1..1..1..1
%Y Cf. A261942.
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 06 2015
| 