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%I #4 Oct 08 2015 07:50:53
%S 98,6928,2840827,4513054617,23445293636576,487724113265492752
%N Number of (n+2)X(n+2) 0..1 arrays with each row and column not divisible by 5, read as a binary number with top and left being the most significant bits.
%C Diagonal of A263040.
%e Some solutions for n=2
%e ..1..1..1..0....1..0..1..1....1..0..0..0....0..1..0..0....1..1..1..0
%e ..1..0..0..1....0..1..1..0....0..0..1..0....1..1..0..0....0..0..0..1
%e ..0..0..0..1....0..0..1..0....1..1..1..0....1..1..0..1....1..1..1..0
%e ..0..0..0..1....1..0..0..1....1..0..1..1....0..0..1..1....1..1..1..0
%Y Cf. A263040.
%K nonn
%O 1,1
%A _R. H. Hardin_, Oct 08 2015