Numbers k such that k and k^2 use only the digits 2, 3, 5 and 6.
A137079
Numbers k such that k and k^2 use only the digits 2, 3, 5 and 6.
Terms
- a(0) =5a(1) =6a(2) =25a(3) =235a(4) =256a(5) =23566a(6) =2352365325a(7) =23523653335
External references
- oeis: A137079