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A214144 Number of 0..4 colorings of a 3X(n+1) array circular in the n+1 direction with new values 0..4 introduced in row major order 1
33, 514, 28278, 1101051, 47730973, 2000093424, 84746307320, 3577656763765, 151219261926083, 6389075487200098, 269978080214894342, 11407722800807664903, 482032317577423439601, 20368126430994060884676 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A214141

LINKS

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

FORMULA

Empirical: a(n) = 29*a(n-1) +667*a(n-2) -3517*a(n-3) -48855*a(n-4) +260073*a(n-5) +877261*a(n-6) -6916959*a(n-7) +3304148*a(n-8) +50505862*a(n-9) -103934388*a(n-10) +3498864*a(n-11) +137456208*a(n-12) -66186464*a(n-13) -37655040*a(n-14) +18842112*a(n-15)

EXAMPLE

Some solutions for n=4

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

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

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

CROSSREFS

Sequence in context: A296839 A296988 A058796 * A342199 A002608 A010949

Adjacent sequences:  A214141 A214142 A214143 * A214145 A214146 A214147

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 05 2012

STATUS

approved

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Last modified October 20 03:04 EDT 2021. Contains 348099 sequences. (Running on oeis4.)