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A136051
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Primes p such that 5*p-4 is also prime.
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11
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3, 7, 13, 31, 37, 43, 67, 109, 127, 139, 151, 163, 199, 211, 241, 277, 307, 349, 367, 373, 433, 457, 463, 547, 571, 601, 613, 661, 673, 709, 727, 739, 787, 811, 823, 853, 919, 967, 991, 1021, 1087, 1117, 1129, 1171, 1231, 1291, 1297, 1399, 1471, 1483, 1549
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OFFSET
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1,1
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COMMENTS
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Previous name: Daughter primes of order 2.
For daughter primes of order 1 seeA088878.For smallest daughter primes of order n seeA136019(also definition).
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LINKS
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MATHEMATICA
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n = 2; a = {}; Do[If[PrimeQ[(Prime[k] + 2n)/(2n + 1)], AppendTo[a, (Prime[k] + 2n)/(2n + 1)]], {k, 1, 1500}]; a
(* Second program: *)
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PROG
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(PARI) lista(nn) = forprime(p=2, nn, if (isprime(5*p-4), print1(p, "," )))
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CROSSREFS
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Cf.A088878,A091180,A136019,A136020,A136052,A136053,A136054,A136055,A136056,A136057,A136058,A136059,A136060.
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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