A253925 Primes p such that both (p^2 + 5)/6 and (p^4 + 5)/6 are prime.

127, 1009, 1709, 2087, 2393, 2969, 3221, 3347, 7309, 7757, 7883, 10529, 11411, 12923, 17569, 18269, 21799, 23311, 23633, 24877, 25703, 26839, 27091, 29429, 35461, 35603, 38431, 39367, 39761, 41887, 42967, 43037, 45361, 45989, 47699, 52163, 59093, 63629, 65323, 67103, 68041, 69481, 70937, 74843, 77813, 77867

Offset: 1

Author

Zak Seidov, Jan 19 2015

Keywords

• nonn

Comments

Intersection of A118915 and A247478.

Examples

			a(1)=127=A118915(9)=A247478(9). a(2)=1009=A118915(45)=A247478(22).
		

Links

• Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A118915, A247478.

Programs

PARI

forprime(p=5,1e6,if(isprime((p^2+5)/6) && isprime((p^4+5)/6), print1(p", "))) \\ Charles R Greathouse IV, Jan 19 2015