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A214108 Number of 0..3 colorings on an nX5 array circular in the 5 direction with new values 0..3 introduced in row major order 1
10, 670, 44900, 3008980, 201647240, 13513419640, 905603817680, 60689173906000, 4067093973641120, 272556904729800160, 18265441319366096960, 1224061254004727782720, 82030646145243326825600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A214112

LINKS

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

FORMULA

Empirical: a(n) = 68*a(n-1) -66*a(n-2).

Empirical: G.f. -10*x*(-1+x) / ( 1-68*x+66*x^2 ). - R. J. Mathar, Jul 04 2012

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A099024 A126680 A249848 * A174061 A058174 A006435

Adjacent sequences:  A214105 A214106 A214107 * A214109 A214110 A214111

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 04 2012

STATUS

approved

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Last modified May 18 23:40 EDT 2021. Contains 344009 sequences. (Running on oeis4.)