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Number of (n+2)X(6+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits.
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%I #3 Oct 03 2015 16:10:27

%S 4536,352880,17912392,661066920,26232879096,1007501698644,

%T 37291148287704,1391736921064152

%N Number of (n+2)X(6+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits.

%C Column 6 of A262849.

%e Some solutions for n=1

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

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

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

%Y Cf. A262849.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 03 2015