Numbers k such that k and k^2 use only the digits 1, 4, 5 and 6.
A137045
Numbers k such that k and k^2 use only the digits 1, 4, 5 and 6.
Terms
- a(0) =1a(1) =4a(2) =6454a(3) =66645451116
External references
- oeis: A137045
A137045
Numbers k such that k and k^2 use only the digits 1, 4, 5 and 6.