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A088175
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Primes such that the next two primes are a twin prime pair.
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4
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2, 3, 7, 13, 23, 37, 53, 67, 97, 103, 131, 139, 173, 181, 193, 223, 233, 263, 277, 307, 337, 409, 421, 457, 509, 563, 593, 613, 631, 653, 797, 811, 823, 853, 877, 1013, 1021, 1039, 1051, 1087, 1129, 1223, 1259, 1283, 1297, 1307, 1423, 1447, 1471, 1483, 1601
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OFFSET
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1,1
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COMMENTS
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Primes p such that nextprime(p) + 2 is prime. - Irina Gerasimova, Jun 28 2013
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LINKS
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Amiram Eldar, Table of n, a(n) for n = 1..10000
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MAPLE
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A088175 := proc(n)
prevprime(A001359(n)) ;
end proc:
seq(A088175(n), n=1..30) ; # R. J. Mathar, Nov 26 2014
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MATHEMATICA
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fQ[n_]:=PrimeQ[NextPrime[n]+2]; Select[Prime@Range@500, fQ] (* Vladimir Joseph Stephan Orlovsky, Apr 16 2011 *)
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PROG
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(PARI) is(n)=isprime(n) && isprime(nextprime(n+1)+2) \\ Charles R Greathouse IV, Jun 28 2013
(Magma) [NthPrime(n): n in [1..260] | NthPrime(n+2)-NthPrime(n+1) eq 2]; // Vincenzo Librandi, Nov 18 2014
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CROSSREFS
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Cf. A088176.
Sequence in context: A291544 A208149 A144104 * A271827 A298339 A091440
Adjacent sequences: A088172 A088173 A088174 * A088176 A088177 A088178
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KEYWORD
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easy,nonn
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AUTHOR
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Zak Seidov, Sep 22 2003
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EXTENSIONS
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More terms from Ray Chandler, Sep 25 2003
Definition clarified by Irina Gerasimova, Jun 28 2013
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STATUS
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approved
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