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A262802 Number of (7+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. 0

%I #3 Oct 02 2015 08:18:16

%S 0,167281,13349904,2745709200,1124519007690,461326213311625,

%T 172824721449665640

%N Number of (7+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 Row 7 of A262795.

%e Some solutions for n=2

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

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

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

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

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

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

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

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

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

%Y Cf. A262795.

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 02 2015

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Last modified April 26 20:34 EDT 2024. Contains 372004 sequences. (Running on oeis4.)