Indices of powers of two in A055744 (the sequence of n that have the same prime power set as phi(n)).

A256248

Indices of powers of two in A055744 (the sequence of n that have the same prime power set as phi(n)).

Terms

    a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =10a(6) =14a(7) =20a(8) =29a(9) =41a(10) =57a(11) =79a(12) =110a(13) =153a(14) =210a(15) =286a(16) =392a(17) =534a(18) =723a(19) =982a(20) =1330a(21) =1790a(22) =2415a(23) =3249a(24) =4359a(25) =5838a(26) =7824a(27) =10457a(28) =13949a(29) =18581

External references