a(n) is the smallest number k such that phi(k) >= n*phi(k-1).

A266269

a(n) is the smallest number k such that phi(k) >= n*phi(k-1).

Terms

    a(0) =2a(1) =3a(2) =7a(3) =211a(4) =30031a(5) =223092871

External references