Numbers k such that the digits of k joined to the digits of 2k contain each of the digits from 1 to 9 once.
A064160
Numbers k such that the digits of k joined to the digits of 2k contain each of the digits from 1 to 9 once.
Terms
- a(0) =6729a(1) =6792a(2) =6927a(3) =7269a(4) =7293a(5) =7329a(6) =7692a(7) =7923a(8) =7932a(9) =9267a(10) =9273a(11) =9327
External references
- oeis: A064160