%I A136921
%S A136921 0,26,260,2600,26000,260000,2600000,26000000,260000000,2600000000,26000000000,
               260000000000,
%T A136921 2600000000000,26000000000000,260000000000000
%N A136921 Numbers n such that n and the square of n use only the digits 0, 2, 6 
               and 7.
%C A136921 Generated with DrScheme
%H A136921 J. Wellons, <a href="http://jonathanwellons.com/shared-digits/">Tables 
               of Shared Digits</a>
%e A136921 260000000000000^2 = 67600000000000000000000000000
%Y A136921 Sequence in context: A109467 A126547 A136922 this_sequence A042308 A059744 
               A016106
%Y A136921 Adjacent sequences: A136918 A136919 A136920 this_sequence A136922 A136923 
               A136924
%K A136921 base,nonn
%O A136921 1,2
%A A136921 Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008