Smallest number k for which the set of solutions to phi(x) = k has 2n-1 entries.

Terms

a(0) =0a(1) =2a(2) =8a(3) =32a(4) =40a(5) =48a(6) =396a(7) =704a(8) =72a(9) =216a(10) =144a(11) =1056a(12) =360a(13) =384a(14) =1320a(15) =240a(16) =9000a(17) =7128a(18) =480a(19) =1296a(20) =15936a(21) =3072a(22) =864a(23) =7344a(24) =720a(25) =4992a(26) =2016a(27) =6000a(28) =4752a(29) =3024