Least prime of the form x^2+13*n^2.

Terms

a(0) =13a(1) =53a(2) =181a(3) =233a(4) =389a(5) =757a(6) =641a(7) =857a(8) =1069a(9) =1301a(10) =1609a(11) =1873a(12) =2213a(13) =2549a(14) =3121a(15) =3329a(16) =3761a(17) =4261a(18) =4729a(19) =5209a(20) =5737a(21) =6301a(22) =6977a(23) =7489a(24) =8161a(25) =8837a(26) =9733a(27) =10193a(28) =10937a(29) =11701