OFFSET
1,1
LINKS
Robert Price, Table of n, a(n) for n = 1..1366
MATHEMATICA
t={}; Do[ If[ PrimitiveRoot[ Prime@n] == 71, AppendTo[t, n]; Print@ Prime@n], {n, 3280000}]; Prime@t
PROG
(PARI) is(n)=if(n<72, return(0)); for(k=2, 70, if(znorder(Mod(k, n))==n-1, return(0))); znorder(Mod(71, n))==n-1&&isprime(n) \\ Charles R Greathouse IV, Jul 19 2011
(PARI) is(n)=isprime(n)&&lift(znprimroot(n))==71 \\ relies on implementation details, may not always work
\\ Charles R Greathouse IV, Jul 19 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Dec 21 2005
EXTENSIONS
a(23) and beyond from Robert Price, Nov 20 2023
STATUS
approved