Highly totient numbers: each number k on this list has more solutions to the equation phi(x) = k than any preceding k (where phi is Euler's totient function, A000010).
A097942
Highly totient numbers: each number k on this list has more solutions to the equation phi(x) = k than any preceding k (where phi is Euler's totient function, A000010).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =8a(4) =12a(5) =24a(6) =48a(7) =72a(8) =144a(9) =240a(10) =432a(11) =480a(12) =576a(13) =720a(14) =1152a(15) =1440a(16) =2880a(17) =4320a(18) =5760a(19) =8640a(20) =11520a(21) =17280a(22) =25920a(23) =30240a(24) =34560a(25) =40320a(26) =51840a(27) =60480a(28) =69120a(29) =80640
External references
- oeis: A097942