A262853 - OEIS

%I #4 Oct 03 2015 16:14:18

%S 54,396,5184,420654,14762016,661066920,35819485902,1848763876932,

%T 97674093333720,5273363053187598,283250082728896200,

%U 15255186777350855280,823762481842229569614,44454274055540034471036,2399751878355335217728304

%N Number of (4+2)X(n+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 Row 4 of A262849.

%H R. H. Hardin, <a href="/A262853/b262853.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

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

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

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

%Y Cf. A262849.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 03 2015