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A262847 Number of (n+2)X(5+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. 1

%I

%S 900,31050,771084,14762016,290338650,5692555116,108936025308,

%T 2071613294466,39520865526156,752512142640600,14283775460054754,

%U 271538648699660460,5162251935414132180,98038344198110173098

%N Number of (n+2)X(5+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 5 of A262849.

%H R. H. Hardin, <a href="/A262847/b262847.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%Y Cf. A262849.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 03 2015

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Last modified June 26 07:35 EDT 2022. Contains 354877 sequences. (Running on oeis4.)