Numbers k such that k and k^2 use only the digits 2, 5, 6 and 8.
A137113
Numbers k such that k and k^2 use only the digits 2, 5, 6 and 8.
Terms
- a(0) =5a(1) =25a(2) =2585a(3) =828665a(4) =25662585
External references
- oeis: A137113
A137113
Numbers k such that k and k^2 use only the digits 2, 5, 6 and 8.