OFFSET
1,1
COMMENTS
2 and 5 together with primes congruent to +/- {1, 3, 9, 13} mod 40. - Eric M. Schmidt, Jan 25 2014
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[100]], JacobiSymbol[10, #] != -1 &] (* Vincenzo Librandi, Sep 07 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved