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!)
A214240 Number of 0..7 colorings of a 2X(n+1) array circular in the n+1 direction with new values 0..7 introduced in row major order 1
4, 18, 354, 7749, 231799, 8178855, 318511707, 13046748480, 547969772934, 23296216625352, 996235422019600, 42723792981743991, 1834737810552367569, 78843837462576032709, 3389239985131275364833, 145715407979704223557482 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A214238

LINKS

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

FORMULA

Empirical: a(n) = 66*a(n-1) -867*a(n-2) -8354*a(n-3) +120414*a(n-4) +672756*a(n-5) -3902534*a(n-6) -24478884*a(n-7) +5777547*a(n-8) +189931178*a(n-9) +205081401*a(n-10) -166116762*a(n-11) -207075960*a(n-12)

EXAMPLE

Some solutions for n=4

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

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

CROSSREFS

Sequence in context: A278565 A214168 A214189 * A156522 A086400 A082022

Adjacent sequences:  A214237 A214238 A214239 * A214241 A214242 A214243

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 08 2012

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 24 19:38 EDT 2022. Contains 354043 sequences. (Running on oeis4.)