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!)
A222788 Number of nX2 0..3 arrays with exactly floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order 1

%I

%S 0,3,8,55,294,1883,11920,78255,517050,3451712,23156964,156076271,

%T 1055435486,7157673375,48656943008,331450961443,2261939399694,

%U 15461147598417,105834401893220,725394224374344,4977715076045096

%N Number of nX2 0..3 arrays with exactly floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order

%C Column 2 of A222794

%H R. H. Hardin, <a href="/A222788/b222788.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 05 2013

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 June 25 03:59 EDT 2022. Contains 354835 sequences. (Running on oeis4.)