A154607 Numbers n such that 11*n + 4 is prime.

3, 5, 9, 17, 23, 33, 35, 39, 45, 47, 53, 57, 59, 65, 75, 89, 95, 99, 107, 117, 129, 135, 137, 147, 155, 159, 173, 177, 179, 183, 185, 189, 203, 207, 213, 239, 243, 245, 263, 269, 297, 305, 315, 317, 323, 329, 339, 347, 357, 365, 375, 383, 387, 389, 393, 395, 407

Offset: 1

Author

Vincenzo Librandi, Jan 15 2009

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A017437, A141851, A154608.

Programs

GAP

Filtered([1..600], k-> IsPrime(11*k+4)); # G. C. Greubel, Sep 18 2019

Magma

[n: n in [0..410] | IsPrime(11*n+4)]; // Vincenzo Librandi, Sep 24 2012

Mathematica

Select[Range[0, 100], PrimeQ[11# + 4]&] (* Vincenzo Librandi, Sep 24 2012 *)

PARI

is(n)=isprime(11*n+4) \\ Charles R Greathouse IV, Sep 24 2012

Sage

[n for n in (1..600) if is_prime(11*n+4)] # G. C. Greubel, Sep 18 2019