A136900 Numbers k such that k and k^2 use only the digits 0, 2, 4, 5 and 8.

0, 2, 5, 20, 22, 45, 50, 200, 202, 205, 220, 450, 500, 502, 505, 2000, 2002, 2005, 2020, 2022, 2050, 2200, 2202, 2245, 2255, 4500, 4522, 5000, 5002, 5005, 5020, 5022, 5045, 5050, 20000, 20002, 20005, 20020, 20022, 20050, 20200, 20205, 20220, 20500, 20505, 20555, 22000, 22002, 22005, 22020, 22450, 22550, 24205, 45000, 45005, 45220, 50000, 50002, 50005

Offset

1,2

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..1602

J. Wellons, Tables of Shared Digits [archived]

Example

5058542502^2 = 25588852244540420004.

Crossrefs

Sequence in context: A270556 A059079 A177494 * A136898 A077138 A247131

Adjacent sequences: A136897 A136898 A136899 * A136901 A136902 A136903

Keyword

base,nonn,changed

Author

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

Status

approved