Inverse function of phi( ).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =5a(6) =8a(7) =10a(8) =12a(9) =7a(10) =9a(11) =14a(12) =18a(13) =15a(14) =16a(15) =20a(16) =24a(17) =30a(18) =11a(19) =22a(20) =13a(21) =21a(22) =26a(23) =28a(24) =36a(25) =42a(26) =17a(27) =32a(28) =34a(29) =40