Base 7 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-7 digits, for some k.
A162228
Base 7 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-7 digits, for some k.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =9a(8) =10a(9) =16a(10) =25a(11) =32a(12) =45a(13) =65a(14) =133a(15) =134a(16) =152a(17) =250a(18) =1542a(19) =3190a(20) =3222a(21) =3612a(22) =3613a(23) =4183a(24) =9286a(25) =35411a(26) =37271a(27) =72865a(28) =191334a(29) =193393
External references
- oeis: A162228