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!)
A247312 Positive numbers not divisible by 10 whose squares remain squares when prefixed with 100. 3
11252109375, 47450841796875, 187605480615234375, 712096246922607421875, 2627953955633148193359375, 9500846300153588104248046875, 29357159521824837441192448139190673828125, 80932484400013426603726400434970855712890625, 218326368611836548856645001359283924102783203125 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Square roots of A247262.
LINKS
EXAMPLE
11252109375^2 = 126609965386962890625 and 100126609965386962890625 is square.
CROSSREFS
Sequence in context: A038453 A290390 A183709 * A204780 A333131 A172587
KEYWORD
nonn
AUTHOR
Chai Wah Wu, Sep 13 2014
STATUS
approved

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 March 28 13:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)