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A174241 Primes p such that 2*p-3 and 4*p-5 are also prime. 1
3, 7, 13, 43, 67, 97, 127, 181, 211, 223, 331, 373, 457, 613, 727, 751, 757, 907, 967, 1021, 1033, 1171, 1201, 1231, 1453, 1471, 1483, 1747, 1933, 2011, 2137, 2437, 2473, 2503, 2521, 2617, 2857, 2953, 3067, 3163, 3541, 3607, 3823, 3847, 3943, 4057, 5167 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[500]], PrimeQ[2 # - 3] && PrimeQ[4 # - 5] &] (* Vincenzo Librandi, Apr 10 2013 *)

PROG

(MAGMA) [p: p in PrimesUpTo(7000) | IsPrime(4*p-5) and IsPrime(2*p-3)];

CROSSREFS

Sequence in context: A147447 A062605 A191974 * A289556 A086208 A090968

Adjacent sequences:  A174238 A174239 A174240 * A174242 A174243 A174244

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Mar 13 2010

STATUS

approved

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Last modified June 16 14:56 EDT 2019. Contains 324152 sequences. (Running on oeis4.)