A121510 Conjectured to be complete list of cycle lengths for 3x+1 (or Collatz) problem.

1, 2, 3, 5, 18

Offset

1,2

Links

Table of n, a(n) for n=1..5.

Crossrefs

Sequence in context: A253646 A004249 A268210 * A132346 A284530 A041293

Adjacent sequences: A121507 A121508 A121509 * A121511 A121512 A121513

Keyword

nonn

Author

Daniel Asimov (dasimov(AT)earthlink.net), Sep 17 2006

Status

approved