A074110 Largest n-digit squarefree number.

7, 97, 998, 9998, 99998, 999997, 9999998, 99999998, 999999998, 9999999998, 99999999998, 999999999998, 9999999999998, 99999999999998, 999999999999998, 9999999999999998, 99999999999999998, 999999999999999998

Offset: 1

Author

Amarnath Murthy, Aug 26 2002

Keywords

• base
• nonn

Crossrefs

Cf. A074109.

Programs

Mathematica

Table[x = 10^n; k = -1; While[! SquareFreeQ[y = x + k], k += -1]; y, {n, 18}] (* Jayanta Basu, Aug 01 2013 *)

Extensions

More terms from Matthew Conroy, Aug 27 2002