The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A136929 Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 9. 1

%I #7 Apr 12 2024 09:51:26

%S 0,3,30,300,3000,30000,30503,30903,300000,305030,309030,550503,950503,

%T 953903,3000000,3005003,3009003,3050300,3055003,3090300,5505030,

%U 9505030,9539030,30000000,30050030,30090030,30503000,30550030,30903000,55050300,95050300,95055003,95390300,300000000,300050003,300050503,300090003,300500300

%N Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 9.

%C Generated with DrScheme.

%C See also A058429-A058430. - _M. F. Hasler_, Jan 24 2008

%H Jonathan Wellons, <a href="/A136929/b136929.txt">Table of n, a(n) for n = 1..352</a>

%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]

%e 950439335440903^2 = 903334930353345333433405455409.

%K base,nonn

%O 1,2

%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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 12 14:38 EDT 2024. Contains 373331 sequences. (Running on oeis4.)