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Number of (4+3) X (n+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.
0

%I #5 May 27 2024 09:04:13

%S 119,1708,56288,3049840,344322375,33563774112,3600054345088,

%T 406348635796752

%N Number of (4+3) X (n+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.

%C Row 4 of A263124.

%e Some solutions for n=3

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

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

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

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

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

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

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

%Y Cf. A263124.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 10 2015