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A250378 Number of length 5+6 0..n arrays with every seven consecutive terms having the maximum of some three terms equal to the minimum of the remaining four terms 1
714, 39471, 584904, 4530981, 23761098, 95876627, 320301600, 927689769, 2402475802, 5685632535, 12493324680, 25797289869, 50524534074, 94547403963, 170050397312, 295377297873, 497481476778, 815123592319, 1302984547464 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A250373

LINKS

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

FORMULA

Empirical: a(n) = (1/35)*n^10 + (85/42)*n^9 + (317/14)*n^8 + (635/7)*n^7 + (1821/10)*n^6 + (6353/30)*n^5 + (956/7)*n^4 + (253/7)*n^3 + (513/35)*n^2 + (1717/105)*n + 1

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A260282 A166841 A166829 * A005467 A214186 A255788

Adjacent sequences:  A250375 A250376 A250377 * A250379 A250380 A250381

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2014

STATUS

approved

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Last modified October 26 16:34 EDT 2020. Contains 338027 sequences. (Running on oeis4.)