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 A057525 Number of applications of f to reduce n to 1, where f(k) is the integer among k/2,(k+1)/4, (k+3)/4. 0
 1, 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 3, 3, 3, 4, 3, 3, 3, 4, 3, 3, 3, 4, 3, 4, 3, 4, 4, 4, 4, 5, 3, 4, 3, 4, 4, 4, 4, 5, 3, 4, 3, 4, 4, 4, 4, 5, 4, 4, 4, 5, 4, 4, 4, 5, 4, 5, 4, 5, 5, 5, 5, 6, 4, 4, 4, 5, 4, 4, 4, 5, 4, 5, 4, 5, 5, 5, 5, 6, 4, 4, 4, 5, 4, 4, 4, 5, 4, 5, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,3 LINKS EXAMPLE a(11)=3, which counts these reductions: 11->4->2->1. CROSSREFS Sequence in context: A108502 A260235 A078120 * A331362 A139325 A216325 Adjacent sequences:  A057522 A057523 A057524 * A057526 A057527 A057528 KEYWORD nonn AUTHOR Clark Kimberling, Sep 03 2000 STATUS approved

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Last modified January 26 11:07 EST 2020. Contains 331279 sequences. (Running on oeis4.)