OFFSET
1,1
EXAMPLE
nextprime(7*2)=17 and nextprime(7)*nextprime(2)=7*2=14 then 2 is member because 17>14
MATHEMATICA
nPrime[x_]:=If[PrimeQ[x], x, NextPrime[x]]; Select[Range[150], nPrime[7#]> 7nPrime[#]&] (* Harvey P. Dale, Feb 16 2012 *)
PROG
(PARI) for(i=1, 150, if(nextprime(7*i)>nextprime(7)*nextprime(i), print1(i, ", ")))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Mohammed Bouayoun (mohammed.bouayoun(AT)sanef.com), Apr 18 2006
STATUS
approved