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A153135 Primes p such that 6*p - 7 is also prime. 5
2, 3, 5, 11, 13, 19, 23, 29, 31, 41, 43, 53, 59, 61, 71, 73, 79, 83, 101, 109, 139, 149, 163, 173, 193, 199, 211, 229, 239, 241, 251, 263, 269, 271, 313, 331, 349, 353, 379, 401, 409, 431, 433, 449, 491, 503, 521, 563, 569, 613, 631, 643, 653, 659, 683, 691, 733, 743 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
lst={}; Do[p=Prime[n]; If[PrimeQ[6*p-7], AppendTo[lst, p]], {n, 6!}]; lst (* Vladimir Joseph Stephan Orlovsky, Dec 23 2008 *)
Select[Prime[Range[110]], PrimeQ[6#-7]&] (* Harvey P. Dale, Oct 25 2011 *)
PROG
(Magma) [n: n in [0..900] | IsPrime(n) and IsPrime(6*n - 7)]; // "or" [p: p in PrimesUpTo(900) | IsPrime(6*p - 7)]; // Vincenzo Librandi, Oct 20 2012
CROSSREFS
Sequence in context: A139053 A184859 A193213 * A038615 A280930 A104293
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Dec 21 2008
EXTENSIONS
Corrected by D. S. McNeil, Dec 10 2010
STATUS
approved

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Last modified March 29 06:15 EDT 2024. Contains 371265 sequences. (Running on oeis4.)