Numbers whose Euler totient function is equal to the product of the number of divisors of their k first powers, for some k.

A283759

Numbers whose Euler totient function is equal to the product of the number of divisors of their k first powers, for some k.

Terms

    a(0) =3a(1) =7a(2) =8a(3) =10a(4) =18a(5) =24a(6) =30a(7) =57a(8) =74a(9) =344a(10) =399a(11) =494a(12) =518a(13) =629a(14) =654a(15) =679a(16) =1154a(17) =2408a(18) =2989a(19) =3048a(20) =3175a(21) =3458a(22) =3789a(23) =4218a(24) =4578a(25) =4890a(26) =5022a(27) =7668a(28) =10602a(29) =13720

External references