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A251259 Numbers n such that 11*12^n + 1 is prime. 2
3, 4, 35, 119, 476, 507, 6471, 13319, 31799 (list; graph; refs; listen; history; text; internal format)
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

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Last modified November 26 04:47 EST 2022. Contains 358353 sequences. (Running on oeis4.)