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 A251768 Run lengths in A251539. 3
 7, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 4, 1, 8, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 2, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 2, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 3, 1, 8, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 2, 10, 1, 10, 1, 10 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 MATHEMATICA max = 2000 (* = max term of A251538 *); A098548 = {1, 2, 3}; For[n = 4, n <= 8 max, n++, If[GCD[n, A098548[[-1]]] == 1 && GCD[n, A098548[[-2]]] > 1, AppendTo[A098548, n]]]; A251538 = Select[Range[max], A098548[[2 # + 3]] > A098548[[2 # + 1]] + 6&]; A251539 = Differences[A251538]; Length /@ Split[A251539] (* Jean-François Alcover, Aug 01 2018 *) PROG (Haskell) import Data.List (group) a251768 n = a251768_list !! (n-1) a251768_list = map length \$ group a251539_list CROSSREFS Cf. A249943, A251767. Sequence in context: A197019 A048835 A124970 * A178034 A124886 A061195 Adjacent sequences:  A251765 A251766 A251767 * A251769 A251770 A251771 KEYWORD nonn AUTHOR Reinhard Zumkeller, Dec 08 2014 STATUS approved

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Last modified April 9 20:11 EDT 2020. Contains 333362 sequences. (Running on oeis4.)