A136822 Numbers k such that k and k^2 use only the digits 0, 1, 2 and 5.

0, 1, 5, 10, 11, 15, 50, 100, 101, 105, 110, 150, 500, 501, 505, 1000, 1001, 1005, 1010, 1011, 1050, 1100, 1101, 1105, 1500, 5000, 5001, 5005, 5010, 5011, 5015, 5050, 10000, 10001, 10005, 10010, 10011, 10050, 10100, 10105, 10110, 10500, 11000, 11001, 11005, 11010, 11050, 11205, 15000, 15005, 50000, 50001, 50005, 50010, 50011, 50015, 50050, 50100

Offset: 1

Author

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

Keywords

• base
• nonn

Comments

Generated with DrScheme

Examples

			5010102005^2 = 25101122100505020025.
		

Links

• Jonathan Wellons, Table of n, a(n) for n = 1..1165
• J. Wellons, Tables of Shared Digits [archived]