A049485 - OEIS

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A049485

Both p and p+510510 are primes, where 510510 is the 7th primorial number A002110(7).

19, 41, 43, 59, 71, 73, 79, 101, 103, 107, 109, 167, 173, 181, 197, 199, 241, 257, 263, 283, 293, 307, 313, 317, 337, 379, 397, 409, 421, 431, 433, 479, 491, 503, 509, 523, 547, 577, 599, 601, 613, 641, 643, 653, 659, 661, 683, 691, 701, 727, 733, 751, 769

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

p and p+510510 are not necessarily consecutive primes.

LINKS

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

EXAMPLE

Both 19 and 19 + 2*3*5*7*11*13*17 = 510529 are prime.

MATHEMATICA

lst={}; Do[p=Prime[n]; If[PrimeQ[p+510510], AppendTo[lst, p]], {n, 6!}]; lst (* Vladimir Joseph Stephan Orlovsky, Jan 04 2009 *)

CROSSREFS