Values taken by the half-totient function phi(m)/2.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =8a(7) =9a(8) =10a(9) =11a(10) =12a(11) =14a(12) =15a(13) =16a(14) =18a(15) =20a(16) =21a(17) =22a(18) =23a(19) =24a(20) =26a(21) =27a(22) =28a(23) =29a(24) =30a(25) =32a(26) =33a(27) =35a(28) =36a(29) =39