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A244183 Number of length n+4 0..8 arrays with no five consecutive elements with pattern ababa or abbba (possibly a=b) and new values 0..8 introduced in 0..8 order 1
49, 189, 812, 3832, 19612, 107863, 633072, 3942493, 25918400, 178997028, 1292240106, 9702655297, 75375931728, 602756594266, 4937514449271, 41249246950490, 350098918064990, 3008960352721543, 26117176205443005 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A244185

LINKS

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

FORMULA

Empirical: a(n) = 22*a(n-1) -139*a(n-2) +a(n-3) +1784*a(n-4) +1931*a(n-5) -12600*a(n-6) -50646*a(n-7) -48753*a(n-8) +215387*a(n-9) +1038438*a(n-10) +2236793*a(n-11) +1983939*a(n-12) -4361986*a(n-13) -23908864*a(n-14) -62445686*a(n-15) -116557476*a(n-16) -164083468*a(n-17) -158681803*a(n-18) -35333656*a(n-19) +270032838*a(n-20) +791193237*a(n-21) +1504649448*a(n-22) +2319758240*a(n-23) +3094945131*a(n-24) +3677150092*a(n-25) +3949611368*a(n-26) +3868169748*a(n-27) +3471359234*a(n-28) +2861776683*a(n-29) +2168940385*a(n-30) +1510165759*a(n-31) +963934762*a(n-32) +562027256*a(n-33) +297750070*a(n-34) +142267724*a(n-35) +60680383*a(n-36) +22773619*a(n-37) +7366519*a(n-38) +1990304*a(n-39) +426740*a(n-40) +65808*a(n-41) +5760*a(n-42)

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

CROSSREFS

Sequence in context: A244180 A244181 A244182 * A244184 A251214 A158638

Adjacent sequences: A244180 A244181 A244182 * A244184 A244185 A244186

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 21 2014

STATUS

approved

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Last modified January 30 19:55 EST 2023. Contains 359947 sequences. (Running on oeis4.)