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

%I

%S 1,9,11,91,96,261,911,1291,1619,2986,16989,26291,81619,92896,126969,

%T 128891,162161,298161,928881,2861291,16162296,16988869,26289291,

%U 28616119,29696296,81669261,82866881,92888219,129196989,129221619,129696296,169298896,261186296,286692896,286698661,296981969,298199281,299981881,299982161,829619261

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

%C Generated with DrScheme.

%H Jonathan Wellons, <a href="/A137016/b137016.txt">Table of n, a(n) for n = 1..230</a>

%H J. Wellons, <a href="http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a>

%e 981269161281291^2 = 962889166881688288212826626681.

%K base,nonn

%O 1,2

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

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Last modified October 22 15:40 EDT 2021. Contains 348172 sequences. (Running on oeis4.)