OFFSET
1,1
EXAMPLE
a(1) = 2 because 2^5 - prime(2) = 29 a prime.
a(2) = 8 because 8^5 - prime(8) = 32749 is prime.
a(3) = 10 because 10^5 - prime(10) = 99971 is prime.
a(8) = 190 because 190^5 - prime(190) = 247609898849 is prime.
MATHEMATICA
Select[Range[2000], PrimeQ[#^5 - Prime[#]] &] (* T. D. Noe, Jun 13 2012 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jonathan Vos Post, Jun 13 2012
STATUS
approved