OFFSET
0,1
COMMENTS
Probability that a random number is not squarefree; probability that two random numbers have a common divisor greater than 1.
LINKS
Charles R Greathouse IV,Table of n, a(n) for n = 0..10000
EXAMPLE
0.39207289814597337133672322074163416657384735196652070692634580863496...
PROG
(PARI) 1-6/Pi^2
CROSSREFS
KEYWORD
AUTHOR
Charles R Greathouse IV,Sep 13 2013
STATUS
approved