Numbers k such that k and k^2 use only the digits 3, 6, 8 and 9.
A137138
Numbers k such that k and k^2 use only the digits 3, 6, 8 and 9.
Terms
- a(0) =3a(1) =6a(2) =63a(3) =83a(4) =833a(5) =836a(6) =96886a(7) =98336
External references
- oeis: A137138
A137138
Numbers k such that k and k^2 use only the digits 3, 6, 8 and 9.