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A254692 Number of length n+4 0..2 arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms 1
133, 267, 552, 1140, 2310, 4542, 9106, 18498, 37742, 77010, 156546, 318427, 649407, 1326877, 2713484, 5550992, 11360343, 23266909, 47691587, 97820467, 200754359, 412222139, 846895302, 1740851986, 3580251228, 7366679989, 15164514943 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A254698

LINKS

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

FORMULA

Empirical: a(n) = 3*a(n-1) -3*a(n-2) +4*a(n-3) -6*a(n-4) +26*a(n-5) -43*a(n-6) +21*a(n-7) -55*a(n-8) +59*a(n-9) -217*a(n-10) +185*a(n-11) -38*a(n-12) +350*a(n-13) -150*a(n-14) +899*a(n-15) -152*a(n-16) +101*a(n-17) -1001*a(n-18) -108*a(n-19) -2159*a(n-20) -958*a(n-21) -492*a(n-22) +1151*a(n-23) +783*a(n-24) +3028*a(n-25) +2869*a(n-26) +1191*a(n-27) -124*a(n-28) -1084*a(n-29) -2384*a(n-30) -3108*a(n-31) -1346*a(n-32) -484*a(n-33) +650*a(n-34) +1038*a(n-35) +1603*a(n-36) +792*a(n-37) +200*a(n-38) -166*a(n-39) -262*a(n-40) -472*a(n-41) -236*a(n-42) +8*a(n-43) -64*a(n-44) +64*a(n-45) +64*a(n-46) +48*a(n-47) +32*a(n-49)

EXAMPLE

Some solutions for n=10

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

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

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

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A123997 A316630 A250766 * A050882 A146233 A146181

Adjacent sequences:  A254689 A254690 A254691 * A254693 A254694 A254695

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 05 2015

STATUS

approved

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Last modified July 6 05:39 EDT 2022. Contains 355108 sequences. (Running on oeis4.)