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 A186980 Number of ordered 9-tuples of distinct pairwise coprime positive integers with largest element n. 4
 8, 0, 0, 0, 81, 1, 74, 4, 70, 6, 1056, 1, 3640, 793, 398, 247, 621, 89, 14930, 956, 1662, 513, 42243, 285, 93093, 6831, 6765, 7785, 213681, 5511, 162549, 13299, 44517, 25245, 633633, 16731, 145215, 36003, 108885, 67779, 1437252, 9867, 2406404 (list; graph; refs; listen; history; text; internal format)
 OFFSET 19,1 LINKS Alois P. Heinz, Table of n, a(n) for n = 19..200 EXAMPLE a(24) = 1 because there is one ordered 9-tuple of distinct pairwise coprime positive integers with largest element 24: (1,5,7,11,13,17,19,23,24). CROSSREFS Column 9 of triangle A186972. First differences of A186985. Sequence in context: A299165 A221890 A047758 * A171918 A265117 A279418 Adjacent sequences:  A186977 A186978 A186979 * A186981 A186982 A186983 KEYWORD nonn AUTHOR Alois P. Heinz, Mar 02 2011 STATUS approved

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Last modified June 7 05:20 EDT 2020. Contains 334837 sequences. (Running on oeis4.)