Conjectured greatest number that converges to prime(n) under the iteration x -> phi(x) + 1, where phi is Euler's totient function.

A229487

Conjectured greatest number that converges to prime(n) under the iteration x -> phi(x) + 1, where phi is Euler's totient function.

Terms

    a(0) =2a(1) =6a(2) =12a(3) =30a(4) =22a(5) =138a(6) =60a(7) =54a(8) =46a(9) =58a(10) =62a(11) =174a(12) =498a(13) =510a(14) =94a(15) =106a(16) =118a(17) =4314a(18) =134a(19) =142a(20) =1038a(21) =158a(22) =166a(23) =276a(24) =420a(25) =250a(26) =206a(27) =214a(28) =750a(29) =1758

External references