This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A249624 Numbers n such that the sum of n and the least prime>n (A151800(n)) is prime. 3
 0, 1, 2, 6, 8, 14, 18, 20, 24, 30, 34, 36, 38, 48, 50, 54, 64, 68, 78, 80, 84, 94, 96, 98, 104, 110, 114, 124, 132, 134, 138, 144, 154, 156, 164, 174, 182, 188, 198, 208, 210, 216, 220, 228, 230, 248, 252, 258, 260, 270, 284, 294, 300, 306, 308, 314, 322, 328, 330, 336, 344, 360 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS EXAMPLE 50 is in the sequence because A151800(50)=53, and 50+53=103 is prime. PROG (PARI){for(i=0, 10^3, k=i+nextprime(i+1); if(isprime(k), print1(i, ", ")))} CROSSREFS Cf. A151800, A249666, A249667, A249676. Sequence in context: A212124 A213374 A271729 * A104636 A212014 A270050 Adjacent sequences:  A249621 A249622 A249623 * A249625 A249626 A249627 KEYWORD nonn AUTHOR Antonio Roldán, Dec 03 2014 STATUS approved

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

Last modified December 5 23:39 EST 2019. Contains 329784 sequences. (Running on oeis4.)