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A244180 Number of length n+4 0..5 arrays with no five consecutive elements with pattern ababa or abbba (possibly a=b) and new values 0..5 introduced in 0..5 order 1
49, 189, 811, 3803, 19113, 101200, 556443, 3141344, 18055451, 105031051, 615855357, 3630021442, 21469739425, 127267424833, 755516316275, 4489379505664, 26693206393472, 158778998961063, 944717095247720 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A244185

LINKS

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

FORMULA

Empirical: a(n) = 7*a(n-1) +4*a(n-2) -44*a(n-3) -104*a(n-4) -72*a(n-5) +290*a(n-6) +1095*a(n-7) +2087*a(n-8) +2522*a(n-9) +1293*a(n-10) -2295*a(n-11) -8084*a(n-12) -14734*a(n-13) -20253*a(n-14) -22955*a(n-15) -22128*a(n-16) -18438*a(n-17) -13301*a(n-18) -8283*a(n-19) -4402*a(n-20) -1946*a(n-21) -694*a(n-22) -179*a(n-23) -30*a(n-24)

EXAMPLE

Some solutions for n=6

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

..1....0....1....0....1....1....1....1....0....1....1....1....1....1....0....1

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

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

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

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

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

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

..4....3....3....2....5....0....2....4....0....1....2....0....5....1....5....1

..1....3....0....3....3....5....1....3....4....3....2....4....4....1....3....2

CROSSREFS

Sequence in context: A038628 A244695 A244179 * A244181 A244182 A244183

Adjacent sequences: A244177 A244178 A244179 * A244181 A244182 A244183

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 21 2014

STATUS

approved

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Last modified March 31 05:57 EDT 2023. Contains 361634 sequences. (Running on oeis4.)