Numbers x such that the sum of all their cyclic permutations is equal to that of all cyclic permutations of sigma(x) and all cyclic permutations of Euler totient function phi(x).

A247317

Numbers x such that the sum of all their cyclic permutations is equal to that of all cyclic permutations of sigma(x) and all cyclic permutations of Euler totient function phi(x).

Terms

    a(0) =1a(1) =2907a(2) =3339a(3) =3726a(4) =4293a(5) =4371a(6) =4614a(7) =5049a(8) =5319a(9) =5607a(10) =5751a(11) =6291a(12) =17901a(13) =18009a(14) =18441a(15) =19413a(16) =20349a(17) =20655a(18) =20943a(19) =21219a(20) =21267a(21) =21573a(22) =21627a(23) =22137a(24) =22191a(25) =23355a(26) =24831a(27) =25647a(28) =25731a(29) =26019

External references