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 A250146 Number of length 7+2 0..n arrays with the medians of every three consecutive terms nondecreasing. 1
 180, 4530, 45232, 274901, 1219944, 4350588, 13201680, 35373129, 85849852, 192208302, 402420096, 796122925, 1500404816, 2711339928, 4722722400, 7963669329, 13047004740, 20830593418, 32494066704, 49633671813, 74378281912 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A250140. LINKS R. H. Hardin, Table of n, a(n) for n = 1..136 FORMULA Empirical: a(n) = (169/3780)*n^9 + (1867/2520)*n^8 + (4241/840)*n^7 + (829/45)*n^6 + (7103/180)*n^5 + (18479/360)*n^4 + (305191/7560)*n^3 + (11659/630)*n^2 + (533/105)*n + 1. EXAMPLE Some solutions for n=3 ..2....0....0....1....0....1....2....0....2....1....3....0....3....0....0....2 ..1....1....0....2....1....2....1....0....0....0....2....3....0....0....2....1 ..0....1....1....3....3....2....2....2....0....3....1....1....0....1....1....1 ..2....0....0....2....2....3....2....0....1....2....2....0....1....2....1....2 ..2....1....3....1....1....2....2....1....0....2....3....1....0....1....1....0 ..2....3....1....2....2....2....1....3....1....1....0....2....0....3....0....1 ..3....1....1....3....2....2....3....2....2....2....3....2....1....3....1....2 ..3....0....2....0....2....3....2....0....1....3....3....3....2....3....1....3 ..3....1....3....3....0....1....1....2....3....1....3....1....1....3....0....3 CROSSREFS Cf. A250140. Sequence in context: A058835 A008432 A289318 * A243465 A271673 A008378 Adjacent sequences: A250143 A250144 A250145 * A250147 A250148 A250149 KEYWORD nonn AUTHOR R. H. Hardin, Nov 13 2014 STATUS approved

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Last modified June 3 15:36 EDT 2023. Contains 363116 sequences. (Running on oeis4.)