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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A136813 Numbers n such that n and the square of n use only the digits 0, 1, 2, 3 and 7. 2

%I

%S 0,1,10,11,100,101,110,111,1000,1001,1010,1011,1100,1101,1110,10000,

%T 10001,10010,10011,10100,10101,10110,10111,11000,11001,11010,11100,

%U 11101,100000,100001,100010,100011,100100,100101,100110,100111,101000,101001,101010,101011,101100,101110,110000,110001,110010,110100,110101,111000,111001,111010

%N Numbers n such that n and the square of n use only the digits 0, 1, 2, 3 and 7.

%C Generated with DrScheme

%H Jonathan Wellons, <a href="/A136813/b136813.txt">Table of n, a(n) for n=1..1411</a>

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

%e 3711303010100^2 = 13773770032777320702010000

%K base,nonn

%O 1,3

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

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 04:46 EDT 2019. Contains 323579 sequences. (Running on oeis4.)