Smallest prime p such that n = A049108(p) = length of chain of iterates of Euler Phi starting with p.
A060611
Smallest prime p such that n = A049108(p) = length of chain of iterates of Euler Phi starting with p.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =11a(4) =17a(5) =41a(6) =83a(7) =137a(8) =257a(9) =641a(10) =1097a(11) =2657a(12) =5441a(13) =10883a(14) =17477a(15) =40961a(16) =65537a(17) =140417a(18) =295937a(19) =557057a(20) =1193537a(21) =2384897a(22) =4227137a(23) =9548417a(24) =17966357a(25) =35946497a(26) =71304257a(27) =162174977a(28) =305268737a(29) =541073537
External references
- oeis: A060611