A126785 Numbers k such that 10*k + 11 is prime.

0, 2, 3, 5, 6, 9, 12, 14, 17, 18, 20, 23, 24, 26, 27, 30, 32, 39, 41, 42, 45, 48, 51, 53, 56, 59, 62, 63, 65, 68, 69, 74, 75, 80, 81, 87, 90, 93, 96, 98, 101, 102, 104, 105, 108, 114, 116, 117, 119, 122, 128, 129, 131, 135, 137, 144, 146, 147, 150, 152, 156, 159, 161

Offset: 1

Author

Parthasarathy Nambi, Feb 18 2007

Keywords

• nonn
• easy

Examples

			If n=98 then 10n + 11 = 991 (prime).
		

Links

• Robert Israel, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A102342.

Programs

Magma

[ n: n in [0..200] | IsPrime(10*n+11) ]; // Vincenzo Librandi, Nov 23 2010

Maple

select(n -> isprime(10*n+11), [$0..500]); # Robert Israel, Jan 10 2019

Mathematica

Select[Range[0,161],PrimeQ[10#+11]&] (* James C. McMahon, Dec 27 2024 *)

PARI

is(n)=isprime(10*n+11) \\ Charles R Greathouse IV, Jun 13 2017