1,1

Integers n where A001221(n) divides A000010(n).

G. C. Greubel, Table of n, a(n) for n = 1..5000

Select[Range[2, 100], Divisible[EulerPhi[#], PrimeNu[#]]&] (* Harvey P. Dale, May 06 2013 *)

(PARI) for(n=2, 1e3, if(eulerphi(n)%omega(n)==0, print1(n", "))) \\ Charles R Greathouse IV, Aug 17 2011

Cf. A000010, A001221, A175785.

Sequence in context: A246103 A281873 A273888 * A070915 A004441 A004438

Adjacent sequences: A192215 A192216 A192217 * A192219 A192220 A192221

nonn

Enrique Pérez Herrero, Aug 06 2011

approved