OFFSET
1,2
LINKS
N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
FORMULA
Never reaches a cycle (see A117816).
MATHEMATICA
NestList[FromDigits[Reverse[IntegerDigits[#]]]+40&, 1, 50] (* Harvey P. Dale, Dec 26 2010 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Luc Stevens (lms022(AT)yahoo.com), May 09 2006
STATUS
approved