A213535 Numbers n such that n^5 - prime(n) is prime.

2, 8, 10, 14, 30, 40, 50, 190, 294, 308, 346, 370, 396, 400, 630, 634, 690, 716, 746, 790, 870, 912, 926, 968, 1010, 1104, 1122, 1130, 1198, 1204, 1308, 1392, 1394, 1482, 1532, 1560, 1600, 1640, 1706, 1714, 1740, 1742, 1770, 1784, 1810, 1816, 1848, 1880

Offset: 1

Author

Jonathan Vos Post, Jun 13 2012

Keywords

• nonn
• easy

Examples

			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.
		

Crossrefs

Cf. A064712, A212881, A212883.

Programs

Mathematica

Select[Range[2000], PrimeQ[#^5 - Prime[#]] &] (* T. D. Noe, Jun 13 2012 *)