Numbers k such that phi(k) is a perfect sixth power.

Terms

a(0) =1a(1) =2a(2) =85a(3) =128a(4) =136a(5) =160a(6) =170a(7) =192a(8) =204a(9) =240a(10) =4369a(11) =8192a(12) =8224a(13) =8704a(14) =8738a(15) =10240a(16) =10280a(17) =10880a(18) =12288a(19) =12336a(20) =13056a(21) =15360a(22) =15420a(23) =16320a(24) =47197a(25) =47239a(26) =47989a(27) =49267a(28) =49589a(29) =50557