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!)
A235076 Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1

%I #7 Jun 19 2022 23:24:03

%S 534008,4832976,48272960,552618120,6369625168,76480296484,

%T 910186153752,11128033519340,134469589439024,1668697872495412,

%U 20430987458761408,257466582702061252,3194355607688872016,40911246503227383344

%N Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%H R. H. Hardin, <a href="/A235076/b235076.txt">Table of n, a(n) for n = 1..24</a>

%e Some solutions for n=1:

%e 4 5 6 1 2 0 4 1 0 7 3 1 2 0 1 6 7 1 4 2 3 4 3 7

%e 2 0 4 2 6 1 6 0 2 6 5 0 0 1 5 7 5 2 6 7 5 3 5 6

%Y Column 5 of A235078.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 03 2014

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 July 31 08:07 EDT 2024. Contains 374774 sequences. (Running on oeis4.)