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!)
A251399 Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements 1

%I

%S 9195809,22875877611,56631282128854,140311657486510902,

%T 347621346436641654516,861234687688644770671972,

%U 2133718605852583377537309624,5286311814644085887392523805345

%N Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements

%C Column 5 of A251402

%H R. H. Hardin, <a href="/A251399/b251399.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..2..0..3..1..0..2....0..0..1..1..3..2....0..0..3..3..0..3....2..0..1..3..1..3

%e ..0..2..2..1..3..2....0..3..2..0..2..1....0..2..2..0..1..2....0..0..2..1..3..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 02 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 August 12 22:46 EDT 2022. Contains 356077 sequences. (Running on oeis4.)