OFFSET
1,1
EXAMPLE
1676641682 is there because 1676641682=2*838320841, 1676641683=3*558880561, 1676641684=4*419160421, 1676641685=5*335328337, 1676641686=6*279440281, 1676641687=7*239520241, 1676641688=8*209580211, 1676641689=9*186293521, 1676641690=10*167664169 and 1676641691=1*1676641691. The left factors are the integers 1 to 10; and the right factors are primes.
CROSSREFS
KEYWORD
nonn
AUTHOR
Don Reble, May 21 2002
STATUS
approved