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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 11 2014
STATUS
approved

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Last modified February 23 09:02 EST 2024. Contains 370276 sequences. (Running on oeis4.)