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A053184
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Primes p such that p^2+p-1 is prime.
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17
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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; internal format)
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OFFSET
| 1,1
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
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MATHEMATICA
| Select[Prime[Range[175]], PrimeQ[#^2+#-1]&] (* Bruno Berselli, Nov 08 2011 *)
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PROG
| (PARI) isA053184(n)=isprime(n) && isprime(n^2+n-1) [From Michael B. Porter, May 10 2010]
(MAGMA) [p: p in PrimesUpTo(1050) | IsPrime(p^2+p-1)]; // Bruno Berselli, Nov 08 2011
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CROSSREFS
| Cf. A053182, A065508, A091567.
Sequence in context: A042999 A089194 A050229 * A020607 A180640 A128425
Adjacent sequences: A053181 A053182 A053183 * A053185 A053186 A053187
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KEYWORD
| nonn,easy
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AUTHOR
| Enoch Haga (Enokh(AT)comcast.net), Mar 01 2000
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