OFFSET
1,2
COMMENTS
a(10) <= 462850319999160398264270. - David A. Corneth, Sep 19 2020
If n is odd then a(n) >= A020754(n-1). If n is even then a(n) >= A020754(2n-1). - Jud McCranie, Sep 30 2020
EXAMPLE
174 is squarefree, 177 is the next squarefree integer, and gcd(174,177) = 3; this is the first pair of consecutive squarefree numbers whose GCD is 3, so a(3)=174. - Jud McCranie, Nov 25 2019
CROSSREFS
KEYWORD
sign,hard,more
AUTHOR
N. J. A. Sloane, Aug 31 2005
EXTENSIONS
a(6) corrected by Don Reble. - N. J. A. Sloane, Nov 25 2019
STATUS
approved