OFFSET
1,1
COMMENTS
The corresponding GCDs are given by A228811.
LINKS
PROG
(PARI) isA000430(n)=isprime(n) || (issquare(n, &n) && isprime(n))
H=0; for(n=2, 1e6, H+=1/(n-1); if(!isA000430(n) && gcd(n, numerator(H))>1, print1(n", "))) \\ Charles R Greathouse IV, Sep 04 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Arkadiusz Wesolowski, Sep 04 2013
EXTENSIONS
a(14)-a(15) from Charles R Greathouse IV, Sep 04 2013
a(16)-a(21) from Charles R Greathouse IV, Sep 09 2013
STATUS
approved