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A138943 Primes of the form (16^n - 3^n)/13. 0
19, 313, 1635972917889127228189253483929940713 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term has 562 digits. - Harvey P. Dale, Mar 28 2013

LINKS

Table of n, a(n) for n=1..3.

MATHEMATICA

a={}; Do[p=(16^n-3^n)/13; If[PrimeQ[p], AppendTo[a, p]], {n, 1, 10^2}]; a

Select[Table[(16^n-3^n)/13, {n, 500}], PrimeQ] (* Harvey P. Dale, Mar 28 2013 *)

CROSSREFS

Cf. A128030.

Sequence in context: A032631 A142430 A180845 * A111420 A166965 A137352

Adjacent sequences:  A138940 A138941 A138942 * A138944 A138945 A138946

KEYWORD

nonn,bref

AUTHOR

Vladimir Joseph Stephan Orlovsky, May 16 2008

STATUS

approved

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Last modified January 28 06:29 EST 2020. Contains 331317 sequences. (Running on oeis4.)