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Number of (n+2)X(n+2) 0..1 arrays with each row divisible by 5 and column not divisible by 5, read as a binary number with top and left being the most significant bits.
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%I #4 Oct 02 2015 07:42:10

%S 0,144,4898,1217748,1628730346,8709248924880

%N Number of (n+2)X(n+2) 0..1 arrays with each row divisible by 5 and column not divisible by 5, read as a binary number with top and left being the most significant bits.

%C Diagonal of A262795.

%e Some solutions for n=3

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

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

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

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

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

%Y Cf. A262795.

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 02 2015