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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A197247 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,0,1,1,1 for x=0,1,2,3,4 1
3, 40, 110, 780, 5062, 31276, 213912, 1244680, 8149652, 54813300, 363207297, 2334210952, 15099425049, 99496688244, 657733281792, 4291822021778, 27959094118746, 183056501656614, 1201021999376817, 7872982494463940 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Every 0 is next to 0 0's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 1's, every 4 is next to 4 1's

Column 5 of A197250

LINKS

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

EXAMPLE

Some solutions containing all values 0 to 4 for n=4

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

..1..4..1..4..1....3..1..1..4..1....3..1..1..4..1....1..3..0..1..1

..2..1..0..1..2....1..3..0..1..2....1..1..0..1..1....3..1..1..4..1

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

CROSSREFS

Sequence in context: A041347 A326608 A160659 * A065815 A283115 A013257

Adjacent sequences:  A197244 A197245 A197246 * A197248 A197249 A197250

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 12 2011

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 September 22 06:53 EDT 2020. Contains 337289 sequences. (Running on oeis4.)