login
A108250
Primes p such that p + googol is prime.
2
3469, 4447, 5641, 6637, 9013, 9631, 10903, 11173, 11839, 13831, 15139, 16183, 17581, 18793, 19819, 21523, 21673, 22027, 22189, 25759, 25771, 28123, 28933, 30517, 33931, 34843, 37171, 42187, 42337, 42901, 46279, 47353, 48823, 49123, 55381, 57709, 59023, 61681
OFFSET
1,1
LINKS
FORMULA
A googol = 10^100.
MATHEMATICA
Select[Range[5*10^4], And @@ PrimeQ[{#, 10^100 + #} ] &] (* Amiram Eldar, Dec 26 2019 *)
PROG
(PARI) g(n) = forstep(x=1, n, 2, if(isprime(10^100+x)&isprime(x), print1(x", ")))
CROSSREFS
Cf. A108252.
Sequence in context: A176268 A031357 A144800 * A237548 A237546 A253365
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, Jun 17 2005
EXTENSIONS
More terms from Amiram Eldar, Dec 26 2019
STATUS
approved