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 A263214 Number of (n+3)X(3+3) 0..1 arrays with each row and column not divisible by 15, read as a binary number with top and left being the most significant bits. 0

%I #3 Oct 12 2015 10:53:27

%S 5416302,395174691,25864201119,1606472091969,94851590043422,

%T 5666950847883973,336423212979882403,19908435853180444585,

%U 1174504708839557685998

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

%C Column 3 of A263215.

%e Some solutions for n=1

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

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

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

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

%Y Cf. A263215.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 12 2015

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Last modified May 20 08:05 EDT 2024. Contains 372703 sequences. (Running on oeis4.)