OFFSET
2,1
COMMENTS
There is no number m such that sigma(m)=pi(m).
EXAMPLE
a(29)=5284804 because sigma(5284804)=29*pi(5284804) and 5284804 is the smallest such number.
CROSSREFS
KEYWORD
easy,nonn,less
AUTHOR
Farideh Firoozbakht, Apr 11 2008
STATUS
approved