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A156109
Primes p such that p+18 and p+36 are both prime.
2
5, 11, 23, 43, 53, 61, 71, 113, 131, 163, 193, 233, 313, 331, 383, 421, 431, 443, 641, 673, 683, 691, 733, 751, 821, 911, 1013, 1033, 1051, 1213, 1283, 1453, 1531, 1583, 1601, 1723, 1741, 1871, 1913, 1993, 2063, 2143, 2203, 2251, 2381, 2423, 2441, 2503
OFFSET
1,1
COMMENTS
A153418 INTERSECT A156104. [Bruno Berselli, Nov 01 2012]
LINKS
MAPLE
a := proc (n) if isprime(ithprime(n)+18) = true and isprime(ithprime(n)+36) = true then ithprime(n) else end if end proc: seq(a(n), n = 1 .. 400); # Emeric Deutsch, Mar 02 2009
MATHEMATICA
Select[Prime[Range[3000]], And @@ PrimeQ[{# + 18, # + 36}]&] (* Vincenzo Librandi, Oct 31 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(3000)|IsPrime(p + 18) and IsPrime (p + 36)]; // Vincenzo Librandi, Oct 31 2012
CROSSREFS
Sequence in context: A323042 A210731 A295959 * A192954 A337437 A107010
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Feb 08 2009
EXTENSIONS
More terms from Emeric Deutsch, Mar 02 2009
STATUS
approved