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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A137141 Numbers n such that n and the square of n use only the digits 4, 5, 6, 7 and 9. 1
7, 74, 76, 676, 67657, 74476, 97764, 746657, 759576, 774576, 974474, 6674576, 7469657, 7549474, 7745676, 9974766, 67597764, 67797976, 74474476, 74495476, 74669657, 74697764, 74799576, 75475676, 77457574, 97967574, 99777976, 666745676, 675647576, 744759657, 754947976, 977469676, 6676576666, 7449697764, 7459595476, 7469574657 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Generated with DrScheme

LINKS

Jonathan Wellons, Table of n, a(n) for n=1..174

J. Wellons, Tables of Shared Digits

EXAMPLE

997494594794657^2 = 994995466644556959799995747649

CROSSREFS

Sequence in context: A172257 A106427 A106417 * A275618 A114472 A000901

Adjacent sequences:  A137138 A137139 A137140 * A137142 A137143 A137144

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved

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 April 23 14:15 EDT 2019. Contains 322386 sequences. (Running on oeis4.)