The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A108252 Primes p such that googol - p is prime. 2
 797, 911, 3221, 3407, 5867, 6173, 8951, 10937, 12809, 13127, 14783, 20639, 22079, 22109, 25247, 26183, 27191, 29501, 29927, 30677, 31013, 31859, 33329, 34757, 34949, 35339, 35603, 35897, 37409, 38867, 40241, 41177, 42239, 44543, 44753, 48491, 49499, 49757, 51383 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A googol = 10^100. LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 MATHEMATICA Select[Range[5*10^4], And @@ PrimeQ[{#, 10^100 - #} ] &] (* Amiram Eldar, Dec 26 2019 *) Select[Prime[Range[5500]], PrimeQ[10^100-#]&] (* Harvey P. Dale, Dec 21 2022 *) PROG (PARI) g(n) = forstep(x=1, n, 2, if(isprime(10^100-x)&isprime(x), print1(x", "))) CROSSREFS Cf. A108250. Sequence in context: A086393 A336943 A108251 * A188536 A252346 A256026 Adjacent sequences: A108249 A108250 A108251 * A108253 A108254 A108255 KEYWORD easy,nonn,fini AUTHOR Cino Hilliard, Jun 17 2005 EXTENSIONS More terms from Amiram Eldar, Dec 26 2019 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 10 02:46 EDT 2024. Contains 375044 sequences. (Running on oeis4.)