Number of genera of imaginary quadratic field with discriminant -k, k = A191483(n).

Terms

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