A136858 Numbers k such that k and k^2 use only the digits 0, 1, 4, 5 and 9.

0, 1, 10, 100, 951, 1000, 1049, 9510, 10000, 10490, 95100, 99499, 99501, 100000, 100499, 100501, 100549, 100951, 104451, 104900, 105549, 951000, 951549, 994990, 995010, 1000000, 1004990, 1005010, 1005490, 1009510, 1044510, 1049000, 1055490, 9510000, 9515490, 9949900, 9950100, 9994999, 9995001, 10000000, 10004999, 10005001, 10005951

Offset

1,3

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..1065

Jonathan Wellons, Tables of Shared Digits

Example

109501594095951^2 = 11990599109554410900994594401.

Crossrefs

Cf. A000290.

Sequence in context: A136876 A231157 A231163 * A334612 A125948 A121084

Adjacent sequences: A136855 A136856 A136857 * A136859 A136860 A136861

Keyword

base,nonn

Author

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

Status

approved