The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

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