OFFSET
1,1
COMMENTS
Besides 1 for fixed points the following lengths of cycles with elements <= 250000 occur: 2, 3, 4, 6, 7, 12, 18, 21, 28, 52, 54, 58, 84, 138, 156, 162, 406, 618, 1376, 1854, 2544, 3953, 5562, 16686.
EXAMPLE
A114727(33) = 792 belongs to the 4-cycle (792,1198,1401,995), so a(33) = 4.
CROSSREFS
KEYWORD
nonn
AUTHOR
Klaus Brockhaus, Dec 29 2005
STATUS
approved