Discriminants of imaginary quadratic fields with class number 13 (negated).

Terms

a(0) =191a(1) =263a(2) =607a(3) =631a(4) =727a(5) =1019a(6) =1451a(7) =1499a(8) =1667a(9) =1907a(10) =2131a(11) =2143a(12) =2371a(13) =2659a(14) =2963a(15) =3083a(16) =3691a(17) =4003a(18) =4507a(19) =4643a(20) =5347a(21) =5419a(22) =5779a(23) =6619a(24) =7243a(25) =7963a(26) =9547a(27) =9739a(28) =11467a(29) =11587