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

 

Logo

Many excellent designs for a new banner were submitted. We will use the best of them in rotation.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A205168 Number of (n+1)X7 0..3 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..3 introduced in row major order 1
7594479, 84495589507, 940186880752830, 10461512493459648399, 116405840403665540209755, 1295254361100907855849613402, 14412368435597398387437153667773, 160367237634205038100384071460748125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A205170

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..1..2..2..1..0..0....0..0..1..2..0..3..3....0..0..0..1..0..1..2

..3..0..0..1..1..1..3....1..2..0..3..0..1..3....1..1..0..0..2..0..3

..3..3..2..0..0..2..1....2..0..3..3..3..2..3....2..1..1..0..0..3..1

..1..3..1..0..1..1..0....0..0..3..0..3..2..1....3..0..1..0..1..3..2

..2..3..2..1..1..0..3....0..2..2..3..1..0..1....3..1..3..2..2..1..1

CROSSREFS

Sequence in context: A213462 A102334 A043668 * A237156 A233605 A204803

Adjacent sequences:  A205165 A205166 A205167 * A205169 A205170 A205171

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 22 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 April 20 01:48 EDT 2014. Contains 240777 sequences.