A062401(x)=phi[sigma(x)] function is iterated; initial value=2^n; a(n)=smallest term of trajectory.

Terms

a(0) =2a(1) =4a(2) =8a(3) =16a(4) =32a(5) =64a(6) =128a(7) =256a(8) =432a(9) =1024a(10) =1728a(11) =4096a(12) =1800a(13) =7200a(14) =32768a(15) =65536a(16) =131072a(17) =262144a(18) =326592a(19) =1036800a(20) =1658880a(21) =4194304a(22) =4838400a(23) =16777216a(24) =33554432a(25) =67108864a(26) =82301184a(27) =207360000a(28) =361267200a(29) =414720000