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A250088 Number of length 7+5 0..n arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms 1
1348, 55647, 813208, 6341373, 33356124, 134387611, 446774000, 1284748281, 3298249396, 7729452247, 16806370824, 34322244853, 66459773004, 122930604819, 218512849120, 375082698737, 624250609956, 1010727810127, 1596565238392 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A250081

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..183

FORMULA

Empirical: a(n) = (173/63)*n^9 + (103/3)*n^8 + 130*n^7 + 224*n^6 + (1162/5)*n^5 + (764/3)*n^4 + (17908/63)*n^3 + 160*n^2 + (123/5)*n + 1

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A224566 A053770 A094037 * A166193 A307586 A224743

Adjacent sequences:  A250085 A250086 A250087 * A250089 A250090 A250091

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 11 2014

STATUS

approved

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Last modified December 13 23:14 EST 2019. Contains 329974 sequences. (Running on oeis4.)