A153766 Numbers n such that 8n-9 is prime.

2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 25, 26, 29, 31, 34, 35, 40, 46, 47, 49, 55, 56, 59, 61, 62, 64, 76, 77, 80, 82, 91, 92, 94, 95, 104, 106, 109, 112, 115, 116, 122, 124, 125, 130, 131, 134, 137, 139, 145, 154, 155, 161, 164, 166, 167, 172, 176, 179, 181, 182, 185, 187

Offset: 1

Author

Vincenzo Librandi, Jan 01 2009

Keywords

• nonn
• easy

Comments

One more than the associated value in A005122. - R. J. Mathar, Jan 05 2011

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A005122, A153767.

Programs

Magma

[n: n in [0..200]| IsPrime(8*n-9)]; // Vincenzo Librandi, Dec 28 2013

Maple

A153766:=n->if isprime(8*n-9) then n fi; seq(A153766(n), n=1..200); # Wesley Ivan Hurt, Dec 28 2013

Mathematica

Select[Range[200], PrimeQ[8 # - 9] &] (* Harvey P. Dale, Oct 21 2011 *)

PARI

is(n)=isprime(8*n-9) \\ Charles R Greathouse IV, Feb 20 2017

Extensions

83 replaced by 82 from R. J. Mathar, Jan 07 2009