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 A186107 Numerator of the frequency of the n-th dropping time in the Collatz iteration. 3
 1, 1, 1, 1, 3, 7, 3, 15, 85, 173, 119, 961, 663, 8045, 17637, 51033, 54475, 312455, 663535, 950235, 5936673, 1684037, 39993895, 87986917, 128989251, 205059181, 949737339, 2861515293, 400296173, 19018424205 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS The possible dropping times are in A020914. The denominators are in A186108. The cumulative frequency of the dropping time is A186109(n)/A186110(n). LINKS Table of n, a(n) for n=1..30. Index entries for sequences related to 3x+1 (or Collatz) problem FORMULA a(n) = numerator of A186009(n) / 2^A020914(n-1). EXAMPLE The frequencies are 1/2, 1/4, 1/16, 1/16, 3/128, 7/256, 3/256, 15/2048, 85/8192,.... CROSSREFS Cf. A126241 (dropping times) Sequence in context: A205723 A088837 A201385 * A282160 A338266 A019158 Adjacent sequences: A186104 A186105 A186106 * A186108 A186109 A186110 KEYWORD nonn,frac AUTHOR T. D. Noe, Feb 12 2011 STATUS approved

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Last modified September 9 22:43 EDT 2024. Contains 375765 sequences. (Running on oeis4.)