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!)
A262471 Number of (n+1)X(7+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits. 1

%I #4 Sep 23 2015 18:51:34

%S 1,86,7396,107731,2924245,194647694,15659602612,997197229531,

%T 73403875498285,5949800358307070,491379103358093140,

%U 40436885956386358531,3371777492321746335493,284471978025689266803566

%N Number of (n+1)X(7+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits.

%C Column 7 of A262472.

%H R. H. Hardin, <a href="/A262471/b262471.txt">Table of n, a(n) for n = 1..57</a>

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A262472.

%K nonn

%O 1,2

%A _R. H. Hardin_, Sep 23 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 13 03:50 EDT 2024. Contains 372497 sequences. (Running on oeis4.)