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 A250160 Number of length 6+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
 2248, 122228, 2144132, 19726379, 120228940, 552269862, 2065373112, 6607592421, 18700338208, 47943752104, 113308224476, 250125796271, 521017392260, 1032386666362, 1958587672368, 3576440979465, 6313441009080, 10813776458524 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A250154 LINKS R. H. Hardin, Table of n, a(n) for n = 1..103 FORMULA Empirical: a(n) = (1/99)*n^11 + (49/36)*n^10 + (5111/252)*n^9 + (4255/42)*n^8 + (5189/21)*n^7 + (4589/12)*n^6 + (90821/180)*n^5 + (5075/9)*n^4 + (23329/63)*n^3 + (3109/42)*n^2 - (42157/2310)*n + 1 EXAMPLE Some solutions for n=2 ..0....2....0....0....2....1....1....0....0....2....0....0....0....0....0....1 ..2....0....0....1....0....2....2....2....0....0....0....2....2....0....0....0 ..2....1....0....0....2....0....2....0....0....0....0....0....1....0....1....0 ..0....0....0....0....1....2....2....2....0....1....0....2....1....2....2....2 ..0....1....1....2....0....1....1....2....0....0....0....0....2....1....0....1 ..1....0....2....1....0....1....1....2....0....2....2....2....1....0....2....1 ..0....0....0....1....1....2....1....0....0....0....0....0....2....2....0....0 ..0....0....0....0....2....1....2....0....1....0....2....0....1....0....0....0 ..1....1....0....0....0....1....0....2....0....2....2....2....2....2....2....2 ..2....2....2....0....2....1....1....0....2....0....0....2....0....0....1....0 ..2....0....1....0....1....2....1....2....1....1....0....0....2....2....0....2 ..0....2....0....2....0....2....1....0....1....0....0....2....1....0....2....2 CROSSREFS Sequence in context: A230679 A236114 A184767 * A287701 A123297 A251944 Adjacent sequences: A250157 A250158 A250159 * A250161 A250162 A250163 KEYWORD nonn AUTHOR R. H. Hardin, Nov 13 2014 STATUS approved

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Last modified July 23 11:07 EDT 2024. Contains 374549 sequences. (Running on oeis4.)