A226615 Length of the Collatz-like 3x+k cycle associated with A226614(n).

2, 3, 6, 4, 7, 5, 20, 11, 12, 28, 6, 38, 44, 48, 72, 18, 106, 29, 75, 7, 37, 14, 10, 42, 72, 66, 10, 68, 38, 58, 72, 8, 43, 110, 22, 33, 68, 29, 42, 71, 13, 46, 121, 28, 182, 200, 47, 9, 21, 60, 108, 28, 156, 19, 22, 85, 79, 151, 62, 56, 71, 60, 78, 226, 104, 192

Offset

1,1

Links

Geoffrey H. Morley, Table of n, a(n) for n = 1..10000

Index entries for sequences related to 3x+1 (or Collatz) problem

Formula

a(n) = A226609(A226612(floor(A226614(n)/3)+1)).

For n>227, this formula requires terms beyond A226609(10000).

Prog

(PARI) See A226614.

Crossrefs

Sequence in context: A348243 A019567 A098286 * A138608 A092283 A266191

Adjacent sequences: A226612 A226613 A226614 * A226616 A226617 A226618

Keyword

nonn

Author

Geoffrey H. Morley, Aug 02 2013

Status

approved