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A262100 Primes p such that 2^p + 29 is also prime. 1
3, 5, 7, 13, 17, 23, 37, 43, 73, 79, 89, 127, 239, 409, 2543, 10837, 24749, 29879, 181913 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(20) > 419637. - Robert Price, Oct 04 2015
LINKS
EXAMPLE
3 is in sequence because 2^3 + 29 = 37 is prime.
5 is in sequence because 2^5 + 29 = 61 is prime.
MATHEMATICA
Select[Prime[Range[1000]], PrimeQ[2^# + 29] &]
PROG
(Magma) [p: p in PrimesUpTo(1000) | IsPrime(2^p+29)];
(PARI) for(n=1, 1e3, if(isprime((2^prime(n))+29), print1(prime(n)", "))) \\ Altug Alkan, Sep 18 2015
(Perl) use ntheory ":all"; use Math::GMP ":constant"; forprimes { say if is_prob_prime(2**$_+29) } 1e4; # Dana Jacobsen, Oct 03 2015
CROSSREFS
Subsequence of primes of A156982.
Cf. similar sequences listed in A262098.
Sequence in context: A028879 A067567 A104294 * A171566 A137270 A071111
KEYWORD
nonn,more
AUTHOR
Vincenzo Librandi, Sep 18 2015
EXTENSIONS
a(17)-a(18) from Dana Jacobsen, Oct 03 2015
a(19) derived from A156982 by Robert Price, Oct 04 2015
STATUS
approved

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)