login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A240772 Number of nX4 0..3 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..3 introduced in row major order 1
5, 196, 8319, 357943, 15484811, 671539712, 29164866719, 1267677501494, 55127359226486, 2397991057304305, 104327512613317759, 4539326052824027843, 197518541157705375152, 8594849725702241760851, 374004476219684412455327 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A240774

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..193

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A194573 A194574 A194575 * A142927 A114351 A296172

Adjacent sequences:  A240769 A240770 A240771 * A240773 A240774 A240775

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 12 2014

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 22 22:16 EST 2020. Contains 331166 sequences. (Running on oeis4.)