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 A213538 Maximum deviation from n in Collatz trajectory of n. 1
 0, 1, 13, 3, 11, 10, 45, 7, 43, 9, 41, 11, 27, 38, 145, 15, 35, 34, 69, 19, 43, 30, 137, 23, 63, 25, 9205, 27, 59, 130, 9201, 31, 67, 33, 125, 35, 75, 50, 265, 39, 9191, 41, 153, 43, 91, 114, 9185, 47, 99, 49, 181, 51, 107, 9178, 9177, 55, 139, 57, 245, 100, 123 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Assuming Collatz trajectory ends with 1 and also a(1)=0. LINKS T. D. Noe, Table of n, a(n) for n = 1..10000 EXAMPLE a(3)=13 because the number furthest to 3 in Collatz trajectory of 3 is 16. MATHEMATICA Collatz[n_] := NestWhileList[If[EvenQ[#], #/2, 3 # + 1] &, n, # > 1 &]; Join[{0}, Table[Max[Rest[Abs[Collatz[n] - n]]], {n, 2, 100}]] (* T. D. Noe, Mar 04 2013 *) CROSSREFS Cf. A070165. Sequence in context: A010221 A113172 A128154 * A264971 A107806 A138965 Adjacent sequences:  A213535 A213536 A213537 * A213539 A213540 A213541 KEYWORD nonn AUTHOR Jayanta Basu, Mar 03 2013 STATUS approved

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Last modified September 28 09:32 EDT 2021. Contains 347714 sequences. (Running on oeis4.)