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A250161 Number of length 7+6 0..n arrays with every seven consecutive terms having the maximum of some two terms equal to the minimum of the remaining five terms 1
4166, 293972, 6242596, 66600911, 456748018, 2312181994, 9388944776, 32256038301, 97202409022, 263572868960, 655251400172, 1514717574955, 3291656137706, 6782657859958, 13344281223952, 25208831840825 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A250154

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..67

FORMULA

Empirical: a(n) = (32/99)*n^11 + (1007/90)*n^10 + (5377/63)*n^9 + (1681/6)*n^8 + (1546/3)*n^7 + (10928/15)*n^6 + (45772/45)*n^5 + (9685/9)*n^4 + (67219/126)*n^3 - 14*n^2 - (7551/110)*n + 1

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A104824 A168663 A043627 * A256836 A104918 A179249

Adjacent sequences:  A250158 A250159 A250160 * A250162 A250163 A250164

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 13 2014

STATUS

approved

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Last modified September 24 22:27 EDT 2018. Contains 315360 sequences. (Running on oeis4.)