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A263305 Number of (2+3)X(n+3) 0..1 arrays with each row divisible by 13 and column not divisible by 13, read as a binary number with top and left being the most significant bits. 1

%I

%S 0,156,1504,46554,1403180,41783272,1143560054,33208175412,

%T 969060086041,27837178102892,803673472569032,23256923981563742,

%U 674524256763682334,19550711000003604408,566822525420474738122,16437935130362734259568

%N Number of (2+3)X(n+3) 0..1 arrays with each row divisible by 13 and column not divisible by 13, read as a binary number with top and left being the most significant bits.

%C Row 2 of A263303.

%H R. H. Hardin, <a href="/A263305/b263305.txt">Table of n, a(n) for n = 1..74</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A263303.

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 13 2015

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Last modified May 21 09:30 EDT 2022. Contains 353908 sequences. (Running on oeis4.)