login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A205898 Number of 6X(n+1) 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors 1
89630, 6120848, 464115072, 34054078628, 2458450081192, 179239228643910, 13024964822628220, 947261634263619042, 68880555520052372106, 5008933161448694459436, 364236043373638266557242 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A205894

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..80

EXAMPLE

Some solutions for n=3

..2..1..0..2....2..1..2..0....0..2..1..0....2..2..2..2....0..1..1..1

..1..2..2..1....1..2..1..2....2..1..2..1....0..1..0..1....0..2..1..2

..1..0..2..2....0..1..0..1....2..2..2..2....1..2..1..0....1..1..2..0

..0..1..0..1....2..1..2..2....0..2..2..0....1..0..1..0....1..0..1..1

..2..2..1..0....0..2..2..0....0..1..2..0....1..1..0..1....1..2..2..1

..2..2..0..0....0..0..1..0....1..2..1..1....0..0..2..1....0..0..2..2

CROSSREFS

Sequence in context: A184028 A209896 A205290 * A250452 A204670 A236908

Adjacent sequences:  A205895 A205896 A205897 * A205899 A205900 A205901

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2012

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified November 23 13:52 EST 2014. Contains 249851 sequences.