Primes p at which phi(p-1)/(p-1) reaches a new minimum, where phi is Euler's totient function.

A241196

Primes p at which phi(p-1)/(p-1) reaches a new minimum, where phi is Euler's totient function.

Terms

    a(0) =2a(1) =3a(2) =7a(3) =31a(4) =211a(5) =2311a(6) =43891a(7) =78541a(8) =120121a(9) =870871a(10) =1381381a(11) =2282281a(12) =4084081a(13) =13123111a(14) =82192111a(15) =106696591a(16) =300690391a(17) =562582021a(18) =892371481a(19) =6915878971a(20) =71166625531a(21) =200560490131

External references