This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A229453 Number of defective 3-colorings of an n X n 0..2 array connected horizontally and vertically with exactly one mistake and colors introduced in row-major 0..2 order 1

%I

%S 0,4,140,7940,903332,221410052,120864516084,149656305350148,

%T 425051698921207676,2789532529161418879776,42518582519087835706922360,

%U 1510724712014268724836823960708,125472358126936901810932026644960976

%N Number of defective 3-colorings of an n X n 0..2 array connected horizontally and vertically with exactly one mistake and colors introduced in row-major 0..2 order

%C Diagonal of A229460

%H R. H. Hardin, <a href="/A229453/b229453.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Sep 24 2013

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 9 17:18 EST 2019. Contains 329879 sequences. (Running on oeis4.)