Numbers k at which phi(tau(k))/tau(phi(k)) reaches a record high.

A346574

Numbers k at which phi(tau(k))/tau(phi(k)) reaches a record high.

Terms

    a(0) =1a(1) =120a(2) =1920a(3) =16320a(4) =32640a(5) =261120a(6) =1044480a(7) =8355840a(8) =26732160a(9) =67107840a(10) =253955520a(11) =268431360a(12) =507911040a(13) =2147450880a(14) =4063288320a(15) =9396354240

External references