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A262913 Number of (n+1)X(4+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits. 1

%I

%S 1,11,33,137,1411,7417,51769,529931,4701201,44632313,454922851,

%T 4573641865,46374477961,476430252011,4902011719233,50649718388009,

%U 526357874613571,5483464232074777,57393678601087705,603752064813378251

%N Number of (n+1)X(4+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

%C Column 4 of A262917.

%H R. H. Hardin, <a href="/A262913/b262913.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A262917.

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 04 2015

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Last modified August 17 05:07 EDT 2022. Contains 356184 sequences. (Running on oeis4.)