A101767 Numbers n such that n, 2n+1, 3n+2, 4n+3, 5n+4, 6n+5 are primes.

154769, 175349, 641549, 658349, 1018709, 2274089, 2894219, 5246009, 6621929, 7949759, 8189999, 8678669, 10366439, 12327629, 13951559, 18160379, 18924569, 21914339, 22279949, 22297799, 24765509, 25592279, 31029389, 31835159, 36802079, 38844119, 38911949

Offset

1,1

Comments

a(n) == 209 (mod 210) - John Cerkan, Mar 22 2018

Links

John Cerkan, Table of n, a(n) for n = 1..10000

Mathematica

a={}; Do[p=Prime[n]; If[PrimeQ[p*2+1]&&PrimeQ[p*3+2]&&PrimeQ[p*4+3]&&PrimeQ[p*5+4]&&PrimeQ[p*6+5], AppendTo[a, p]], {n, 1, 10^5}]; Print[a]; (* Vladimir Joseph Stephan Orlovsky, Apr 29 2008 *)

Crossrefs

Cf. A000040, A005384, A067256, A067257, A067258, A101768, A101769, A101770.

Sequence in context: A255040 A255033 A256951 * A235220 A282163 A250883

Adjacent sequences: A101764 A101765 A101766 * A101768 A101769 A101770

Keyword

nonn,easy

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Extensions

Terms a(25) and beyond from John Cerkan, Mar 22 2018

Status

approved