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!)
A201800 Number of zero-sum nX5 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors 0

%I #4 Mar 31 2012 12:36:45

%S 381,28625,562961,20960485,722587629,27941324053,1077779765471

%N Number of zero-sum nX5 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors

%C Column 5 of A201803

%e Some solutions for n=2

%e .-1.-2.-2..0..0....1..1.-2..1..1...-1..1..1..1..1...-2.-1.-1..2.-2

%e ..2..2..1..1.-1....0..0.-2.-2..2...-2.-2..1..0..0...-1..1..1..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 05 2011

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 April 25 09:28 EDT 2024. Contains 371967 sequences. (Running on oeis4.)