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!)
A232298 Number of 4Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally 1
1, 355, 17759, 718483, 31119789, 1370434057, 60054788123, 2629547976059, 115168967578383, 5044363984412427, 220938351417726213, 9676874008509774099, 423837490846852109695, 18563663237964339458229, 813070077580205734910151 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A232295

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A293563 A241960 A221450 * A108375 A237466 A233686

Adjacent sequences:  A232295 A232296 A232297 * A232299 A232300 A232301

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 22 2013

STATUS

approved

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 19 21:38 EST 2022. Contains 350466 sequences. (Running on oeis4.)