A251259 Numbers n such that 11*12^n + 1 is prime.

3, 4, 35, 119, 476, 507, 6471, 13319, 31799

Offset

1,1

Comments

a(10) > 2*10^5. - Robert Price, Mar 20 2015

Links

Table of n, a(n) for n=1..9.

Example

11*12^4 + 1 = 228097, which is prime.

Mathematica

Select[Range[0, 1000], PrimeQ[11*12^# + 1] &]

Prog

(Magma) [n: n in [1..600]| IsPrime(11*12^n+1)]; // Vincenzo Librandi, Mar 21 2015
(PARI) is(n)=ispseudoprime(11*12^n+1) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Cf. A079907.

Sequence in context: A246015 A078504 A066090 * A042891 A032835 A102920

Adjacent sequences: A251256 A251257 A251258 * A251260 A251261 A251262

Keyword

nonn,more

Author

Robert Price, Mar 20 2015

Status

approved