OFFSET
1,9
COMMENTS
The 3x-1 iteration is x -> 3x-1 if x odd, or x -> x/2 if x even (A001281).
The cycle minima presently known are 1, 5 and 17.
a(n) = 0 iff n = m*2^k where m is one of the cycle minima.
LINKS
Kevin Ryde, Table of n, a(n) for n = 1..10000
CROSSREFS
KEYWORD
nonn,easy,new
AUTHOR
Kevin Ryde, Dec 08 2024
STATUS
approved