OFFSET
1,2
COMMENTS
The terms shown are only conjectured values.
EXAMPLE
a(3)=14 because for m>14, more than 3 primes always exist between m and 2m (inclusive).
PROG
(PARI) pn2n(n) = sum(k=n, 2*n, if(isprime(k), 1, 0)); { mpn2n(a, m, w)=local(k, M); for(n=a, m, M=0; k=0; while(k<w, if(pn2n(k)==n, M=k; k++, k++); ); print1(M" "); ) } mpn2n(1, 200, 1000)
CROSSREFS
KEYWORD
nonn
AUTHOR
Jason Earls, Jan 08 2003
STATUS
approved