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!)
A185538 1/6 the number of nX5 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors 0

%I #6 Mar 31 2012 12:36:02

%S 11,12105,4403225,2241330570,994633804270,468362874353295

%N 1/6 the number of nX5 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors

%C Column 5 of A185540

%e Some solutions for 3X5 with a(1,1)=0

%e ..0..0..0..4..4....0..0..3..3..5....0..0..0..3..4....0..0..0..0..1

%e ..0..3..3..2..4....3..3..4..3..5....0..3..1..3..4....0..3..2..1..1

%e ..0..0..0..2..2....0..0..4..4..5....0..3..1..5..5....0..3..2..5..5

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 30 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 August 17 09:16 EDT 2024. Contains 375209 sequences. (Running on oeis4.)