Discriminants of real quadratic number fields with class number >= 2.

Terms

a(0) =40a(1) =60a(2) =65a(3) =85a(4) =104a(5) =105a(6) =120a(7) =136a(8) =140a(9) =145a(10) =156a(11) =165a(12) =168a(13) =185a(14) =204a(15) =205a(16) =220a(17) =221a(18) =229a(19) =232a(20) =257a(21) =264a(22) =265a(23) =273a(24) =280a(25) =285a(26) =296a(27) =305a(28) =312a(29) =316