Number of initial odd numbers in class n of the iterated phi function.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =7a(6) =13a(7) =16a(8) =24a(9) =33a(10) =47a(11) =60a(12) =94a(13) =122a(14) =155a(15) =187a(16) =266a(17) =354a(18) =409a(19) =550a(20) =734a(21) =955a(22) =1186a(23) =1472a(24) =1864a(25) =2404a(26) =3026a(27) =3712a(28) =4675a(29) =5939