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!)
A185844 Number of (n+1)X9 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace 0

%I #4 Mar 31 2012 12:36:04

%S 1731321,3601102725,3610924080057,4197053176231149,

%T 4780252449901079883,5482800643934316189987

%N Number of (n+1)X9 0..2 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace

%C Column 8 of A185845

%e Some solutions for 3X9

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 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 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)