Discriminants with at least 2 associated cyclic cubic fields.

Terms

a(0) =3969a(1) =8281a(2) =13689a(3) =17689a(4) =29241a(5) =47089a(6) =61009a(7) =67081a(8) =77841a(9) =90601a(10) =110889a(11) =149769a(12) =162409a(13) =182329a(14) =219961a(15) =231361a(16) =261121a(17) =301401a(18) =305809a(19) =312481a(20) =346921a(21) =363609a(22) =431649a(23) =461041a(24) =494209a(25) =505521a(26) =519841a(27) =582169a(28) =628849a(29) =667489