%N Numbers n such that the digits of n are also digits of n^3.
%C Presumably if a digit d appears k times in n, then it should appear at least k times in n^3. - _N. J. A. Sloane_, Nov 24 2018
%H Harvey P. Dale, <a href="/A064931/b064931.txt">Table of n, a(n) for n = 1..1000</a>
%e 12^3 = 1728, which contains all digits of 12, so 12 is a term of the sequence.
%t Select[Range,Min[DigitCount[#^3]-DigitCount[#]]>-1&] (* _Harvey P. Dale_, Nov 24 2018 *)
%A _Joseph L. Pe_, Feb 14 2002
%E Corrected and Mathematica program replaced by _Harvey P. Dale_, Nov 24 2018