The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A226683 Conjectured record-breaking values, for ascending positive integers k, of the maximal element of the primitive cycles of positive integers under iteration by the 3x-k function. 4
 91, 179, 505, 31613, 74611, 1793597, 2571053, 2791627, 3714313409, 42325029259, 107340863887, 746389665271, 15138375216875 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A cycle is called primitive if its elements are not a common multiple of the elements of another cycle. The 3x-k function T_k is defined by T_k(x) = x/2 if x is even, (3x-k)/2 if x is odd, where GCD(k,6)=1. LINKS Table of n, a(n) for n=1..13. CROSSREFS k = A226684(n). The smallest integer in the T_k cycle associated with a(n) is A226685(n). Cf. A226624, A226667. Sequence in context: A113530 A119148 A166059 * A370053 A037998 A063367 Adjacent sequences: A226680 A226681 A226682 * A226684 A226685 A226686 KEYWORD nonn AUTHOR Geoffrey H. Morley, Jun 15 2013 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 21 10:46 EDT 2024. Contains 371852 sequences. (Running on oeis4.)