OFFSET
3,1
COMMENTS
See A066272 for definition of anti-divisor.
EXAMPLE
The anti-divisors of 18 are 4, 5, 7, 12. Hence a(18) = 18/GCD(4*5*7*12, 18) = 3.
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
Lior Manor, Mar 28 2004
EXTENSIONS
Name changed by Franklin T. Adams-Watters, Aug 21 2013
STATUS
approved