OFFSET
1,2
COMMENTS
a(5) <= 105636978090621.
EXAMPLE
a(3)=1375 because 1375=5^3*11, 1376=2^3*172, 1377=3^3*51; all multiples of cubes.
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
Amarnath Murthy, Sep 22 2003
EXTENSIONS
Corrected and extended by Don Reble, Sep 27 2003
a(5) from Donovan Johnson, Dec 14 2010
a(6) from Giovanni Resta, Dec 19 2019
STATUS
approved