Primitive numbers n whose square can be represented as a four "digit" repdigit number in some base < n.
A158912
Primitive numbers n whose square can be represented as a four "digit" repdigit number in some base < n.
Terms
- a(0) =20a(1) =1218a(2) =7540a(3) =20280a(4) =1373090a(5) =4903600a(6) =23308460a(7) =316540365a(8) =527813814a(9) =4091661910a(10) =16718044954a(11) =1034412600a(12) =142903074740
External references
- oeis: A158912