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!)
A214104 Number of 0..2 colorings of a 5 X (n+1) array circular in the n+1 direction with new values 0..2 introduced in row major order. 1
81, 16, 4913, 6480, 428383, 1262128, 41634729, 190532944, 4254090231, 25595530224, 448363485787, 3231395138192, 48307812545787, 393486251977776, 5289839833178345, 46862146728089808, 586190042199419197 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 5 of A214101.
LINKS
FORMULA
Empirical: a(n) = 15*a(n-1) +56*a(n-2) -1688*a(n-3) +4037*a(n-4) +44693*a(n-5) -203873*a(n-6) -312833*a(n-7) +2832059*a(n-8) -909541*a(n-9) -17058886*a(n-10) +18627946*a(n-11) +50511099*a(n-12) -83121717*a(n-13) -71958333*a(n-14) +176504835*a(n-15) +32625006*a(n-16) -199821666*a(n-17) +30366700*a(n-18) +122944620*a(n-19) -43577864*a(n-20) -39520072*a(n-21) +20445664*a(n-22) +5749984*a(n-23) -4391680*a(n-24) -152320*a(n-25) +420352*a(n-26) -34304*a(n-27) -14336*a(n-28) +2048*a(n-29).
EXAMPLE
Some solutions for n=4:
..0..1..0..2..1....0..1..2..0..1....0..1..2..0..1....0..1..2..1..2
..2..0..2..1..0....1..2..0..1..2....1..2..1..2..0....1..2..1..2..0
..0..1..0..2..1....2..0..1..2..0....0..1..2..0..1....0..1..2..1..2
..2..0..2..1..0....0..2..0..1..2....2..0..1..2..0....1..2..0..2..0
..1..2..1..0..2....1..0..1..2..0....1..2..0..1..2....0..1..2..0..2
CROSSREFS
Cf. A214101.
Sequence in context: A366458 A259687 A065793 * A175241 A178373 A147674
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 04 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 March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)