OFFSET
0,1
COMMENTS
333 is the unique 3-digit starting value that produces nontrivial sequences. This is one of the two possible continuations if one starts with 333. For the other see A066349.
EXAMPLE
The factorizations of the first few terms are 3*3*37, 3*5*7*7, 2*2*193, 3*73, 337, ... Thus S = [3,3,3,7,3,5,7,7,2,...] and grouping these in sets of three we recover the sequence.
CROSSREFS
KEYWORD
base,easy,nice,nonn
AUTHOR
Evans A Criswell (criswell(AT)itsc.uah.edu), Dec 20 2001
EXTENSIONS
More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Jul 03 2003
STATUS
approved