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A250343 Number of length 7+5 0..n arrays with every six consecutive terms having the maximum of some three terms equal to the minimum of the remaining three terms 1
648, 46941, 682576, 5156313, 26422104, 104374957, 341862816, 971811153, 2472291496, 5751557757, 12430964976, 25260273961, 48707132280, 89770507149, 159076528960, 272324585505, 452161586376, 730573094557, 1151891497872 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A250336

LINKS

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

FORMULA

Empirical: a(n) = (202/105)*n^9 + (249/10)*n^8 + (217/2)*n^7 + 224*n^6 + 267*n^5 + (2031/10)*n^4 + (1301/42)*n^3 - 129*n^2 - (422/5)*n + 1

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A282334 A034619 A185270 * A035755 A107551 A202056

Adjacent sequences:  A250340 A250341 A250342 * A250344 A250345 A250346

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2014

STATUS

approved

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Last modified January 25 11:23 EST 2022. Contains 350567 sequences. (Running on oeis4.)