login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064931 Numbers n such that the digits of n are also digits of n^3. 1

%I

%S 1,4,5,6,9,10,11,12,21,24,25,29,32,33,34,39,40,49,50,51,54,56,59,60,

%T 61,64,65,67,71,72,73,75,76,90,97,99,100,101,102,106,109,110,114,119,

%U 120,124,125,129,137,153,176,201,202,210,212,224,228,231,233,236

%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[400],Min[DigitCount[#^3]-DigitCount[#]]>-1&] (* _Harvey P. Dale_, Nov 24 2018 *)

%K nonn,base

%O 1,2

%A _Joseph L. Pe_, Feb 14 2002

%E Corrected and Mathematica program replaced by _Harvey P. Dale_, Nov 24 2018

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 26 09:27 EDT 2019. Contains 323579 sequences. (Running on oeis4.)