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A250379 Number of length 6+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
1198, 92497, 1680652, 15139945, 89632970, 400455241, 1460936344, 4572816753, 12694412710, 31993255009, 74462887204, 162125953561, 333521588674, 653388603545, 1226711384368, 2218597290337, 3881807338398, 6594170951665 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A250373

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..135

FORMULA

Empirical: a(n) = (1/231)*n^11 + (151/210)*n^10 + (191/14)*n^9 + 81*n^8 + (1569/7)*n^7 + (703/2)*n^6 + (68657/210)*n^5 + (2941/21)*n^4 - (94/21)*n^3 + (371/15)*n^2 + (14918/385)*n + 1

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A059402 A252000 A251993 * A190833 A137261 A252531

Adjacent sequences:  A250376 A250377 A250378 * A250380 A250381 A250382

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2014

STATUS

approved

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Last modified May 12 03:08 EDT 2021. Contains 343810 sequences. (Running on oeis4.)