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Number of (7+2)X(n+2) 0..1 arrays with each row divisible by 5 and each column divisible by 7, read as a binary number with top and left being the most significant bits.
0

%I #3 Sep 30 2015 11:05:28

%S 74,5476,39751,658381,37426418,3270912532

%N Number of (7+2)X(n+2) 0..1 arrays with each row divisible by 5 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

%C Row 7 of A262759.

%e Some solutions for n=3

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

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

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

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

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

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

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

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

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

%Y Cf. A262759.

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 30 2015

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Last modified September 21 02:23 EDT 2024. Contains 376079 sequences. (Running on oeis4.)