OFFSET
1,1
COMMENTS
Primes of the form 2*k^2 + 2*k - 29.
EXAMPLE
a(1) = 11 because 2*11 + 59 = 81, which is a square.
MATHEMATICA
Select[Prime[Range[4500]], IntegerQ[Sqrt[2 # + 59]] &]
PROG
(Magma) [p: p in PrimesUpTo(50000) | IsSquare(2*p+59)];
(PARI) lista(nn) = {forprime(p=2, nn, if(issquare(2*p + 59), print1(p, ", "))); } \\ Altug Alkan, Mar 24 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Mar 24 2016
STATUS
approved