A053184 - OEIS

A053184

Primes p such that p^2+p-1 is prime.

2, 3, 5, 11, 13, 19, 31, 41, 53, 59, 83, 89, 101, 103, 131, 149, 163, 181, 191, 193, 199, 233, 241, 263, 281, 331, 349, 373, 401, 419, 431, 433, 449, 461, 463, 499, 541, 569, 571, 659, 673, 683, 691, 709, 739, 743, 761, 769, 809, 863, 881, 941, 1013, 1039

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Pierre CAMI, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Prime[Range[175]], PrimeQ[#^2+#-1]&] (* Bruno Berselli, Nov 08 2011 *)

PROG

(PARI) isA053184(n)=isprime(n) && isprime(n^2+n-1) \\ Michael B. Porter, May 10 2010

(Magma) [p: p in PrimesUpTo(1050) | IsPrime(p^2+p-1)]; // Bruno Berselli, Nov 08 2011

CROSSREFS

Cf. A053182, A065508, A091567.

Sequence in context: A089194 A050229 A224321 * A228445 A287164 A020607

Adjacent sequences: A053181 A053182 A053183 * A053185 A053186 A053187

KEYWORD

nonn,easy

AUTHOR

Enoch Haga, Mar 01 2000

STATUS

approved

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