A153134 Numbers k such that 6k - 7 is prime.

2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 15, 16, 18, 19, 20, 23, 24, 26, 29, 30, 31, 33, 34, 39, 40, 41, 43, 44, 45, 46, 48, 50, 53, 54, 59, 60, 61, 65, 66, 68, 71, 73, 75, 76, 78, 79, 81, 83, 85, 86, 88, 94, 95, 96, 99, 100, 101, 104, 108, 109, 110, 111, 114, 115, 118, 121, 125, 128

Offset: 1

Author

Vincenzo Librandi, Dec 21 2008

Keywords

• nonn
• easy

Comments

One more than the associated term in A024898. - R. J. Mathar, Jan 05 2011

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A153245, A153135. - Vladimir Joseph Stephan Orlovsky, Dec 23 2008

Programs

Magma

[n: n in [1..150] | IsPrime(6*n - 7)]; // Vincenzo Librandi, Sep 24 2012

PARI

is(n)=isprime(6*n-7) \\ Charles R Greathouse IV, Feb 20 2017

Extensions

Corrected and extended by Vladimir Joseph Stephan Orlovsky, Dec 23 2008