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 A153418 Primes p such that p+18 is also prime. 8
 5, 11, 13, 19, 23, 29, 41, 43, 53, 61, 71, 79, 83, 89, 109, 113, 131, 139, 149, 163, 173, 179, 181, 193, 211, 223, 233, 239, 251, 263, 293, 313, 331, 349, 379, 383, 401, 421, 431, 439, 443, 449, 461, 491, 503, 523, 569, 599, 601, 613, 641, 643, 659, 673, 683 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 EXAMPLE 5+18=23, 11+18=29, etc. MATHEMATICA lst={}; d=18; Do[p=Prime[n]; If[PrimeQ[p+d], AppendTo[lst, p]], {n, 6!}]; lst Select[Prime[Range[150]], PrimeQ[(# + 18)]&] (* Vincenzo Librandi, Apr 14 2013 *) PROG (MAGMA) [p: p in PrimesUpTo(1000) | IsPrime(p + 18) ]; // Vincenzo Librandi, Apr 14 2013 CROSSREFS Cf. A153417, A049488. Sequence in context: A087490 A140565 A191072 * A079019 A191034 A222219 Adjacent sequences:  A153415 A153416 A153417 * A153419 A153420 A153421 KEYWORD nonn,easy AUTHOR Vladimir Joseph Stephan Orlovsky, Dec 25 2008 EXTENSIONS Definition improved from Bruno Berselli, Oct 31 2012 STATUS approved

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