A137016 Numbers k such that k and k^2 use only the digits 1, 2, 6, 8 and 9.

1, 9, 11, 91, 96, 261, 911, 1291, 1619, 2986, 16989, 26291, 81619, 92896, 126969, 128891, 162161, 298161, 928881, 2861291, 16162296, 16988869, 26289291, 28616119, 29696296, 81669261, 82866881, 92888219, 129196989, 129221619, 129696296, 169298896, 261186296, 286692896, 286698661, 296981969, 298199281, 299981881, 299982161, 829619261

Offset

1,2

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..230

J. Wellons, Tables of Shared Digits [archived]

Example

981269161281291^2 = 962889166881688288212826626681.

Crossrefs

Sequence in context: A359925 A277998 A289288 * A053886 A137020 A058304

Adjacent sequences: A137013 A137014 A137015 * A137017 A137018 A137019

Keyword

base,nonn

Author

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

Status

approved