Squarefree k such that 1/2 - phi(k)/k is positive and minimal for k with gpf(k) = prime(n).
A325237
Squarefree k such that 1/2 - phi(k)/k is positive and minimal for k with gpf(k) = prime(n).
Terms
- a(0) =2a(1) =6a(2) =10a(3) =105a(4) =165a(5) =195a(6) =4641a(7) =5187a(8) =5313a(9) =266133a(10) =8870433a(11) =3068957045a(12) =11063481a(13) =10164297a(14) =667797009a(15) =909411789a(18) =421522466365
External references
- oeis: A325237