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

1,3

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..1551

J. Wellons, Tables of Shared Digits [archived]

Example

50141245^2 = 2514144450150025.

Crossrefs

Sequence in context: A144793 A140707 A257086 * A140180 A175324 A056704

Adjacent sequences: A136814 A136815 A136816 * A136818 A136819 A136820

Keyword

base,nonn

Author

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

Status

approved