OFFSET
1,1
COMMENTS
Odd primes p such that -1 is a 128th power mod p. - Eric M. Schmidt, Mar 27 2014
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
FORMULA
a(n) ~ 128n log n. - Charles R Greathouse IV, Nov 01 2022
MATHEMATICA
Select[256 Range[195] + 1, PrimeQ]
PROG
(PARI) for(n=1, 195, r=256*n+1; if(isprime(r), print1(r", ")));
(Magma) [ p: p in PrimesUpTo(50000) | p mod 256 eq 1 ];
(Haskell)
a208178 n = a208178_list !! (n-1)
a208178_list = filter ((== 1) . a010051) [1, 257..]
-- Reinhard Zumkeller, Mar 06 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Bruno Berselli, Feb 25 2012
STATUS
approved