A136817 Numbers k such that k and k^2 use only the digits 0, 1, 2, 4 and 5.

0, 1, 2, 5, 10, 11, 12, 15, 20, 21, 45, 50, 100, 101, 102, 105, 110, 112, 120, 145, 150, 155, 200, 201, 205, 210, 211, 450, 500, 501, 502, 505, 1000, 1001, 1002, 1005, 1010, 1011, 1012, 1020, 1021, 1050, 1100, 1101, 1102, 1105, 1120, 1200, 1201, 1205, 1245, 1415, 1450, 1451, 1500, 1550, 2000, 2001, 2005, 2010, 2011, 2050, 2100, 2101, 2110, 2245, 4500, 5000, 5001

Offset: 1

Author

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

Keywords

• base
• nonn

Comments

Generated with DrScheme.

Examples

			50141245^2 = 2514144450150025.
		

Links

• Jonathan Wellons, Table of n, a(n) for n = 1..1551
• J. Wellons, Tables of Shared Digits [archived]