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!)
A197240 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,1,2 for x=0,1,2,3,4 2

%I #5 Mar 31 2012 12:36:29

%S 1,37,507,6284,89527,1209990,16248436,220537819,2991520965,

%T 40512793371,548735832406,7434530776423,100724219721520,

%U 1364590772374292,18486981607134199,250455940483033208,3393127984714324346

%N Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,1,2 for x=0,1,2,3,4

%C Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 2's

%C Column 6 of A197242

%H R. H. Hardin, <a href="/A197240/b197240.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions containing all values 0 to 4 for n=4

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

%e ..2..2..2..0..2..2....0..1..0..2..2..2....2..4..2..0..0..0....0..0..2..4..2..2

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Oct 12 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 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)