Number of classes per genus in quadratic field with discriminant -n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =3a(9) =1a(10) =3a(11) =1a(12) =2a(13) =1a(14) =1a(15) =5a(16) =1a(17) =1a(18) =2a(19) =2a(20) =3a(21) =1a(22) =2a(23) =7a(24) =5a(25) =3a(26) =1a(27) =3a(28) =1a(29) =1