A213535 - OEIS

%I #7 Jun 26 2012 12:06:14

%S 2,8,10,14,30,40,50,190,294,308,346,370,396,400,630,634,690,716,746,

%T 790,870,912,926,968,1010,1104,1122,1130,1198,1204,1308,1392,1394,

%U 1482,1532,1560,1600,1640,1706,1714,1740,1742,1770,1784,1810,1816,1848,1880

%N Numbers n such that n^5 - prime(n) is prime.

%e a(1) = 2 because 2^5 - prime(2) = 29  a prime.

%e a(2) = 8 because 8^5 - prime(8) = 32749 is prime.

%e a(3) = 10 because 10^5 - prime(10) = 99971 is prime.

%e a(8) = 190 because 190^5 - prime(190) = 247609898849  is prime.

%t Select[Range[2000], PrimeQ[#^5 - Prime[#]] &] (* _T. D. Noe_, Jun 13 2012 *)

%Y Cf. A064712, A212881, A212883.

%K nonn,easy

%O 1,1

%A _Jonathan Vos Post_, Jun 13 2012