OFFSET

1,1

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..1000

EXAMPLE

3025=55^2 is a square and becomes the square 93025=305^2 if a 9 is attached in front of the decimal representation.

CROSSREFS

KEYWORD

nonn,base

AUTHOR

Claudio Meller, Oct 27 2009

EXTENSIONS

Keyword:base added by R. J. Mathar, Oct 28 2009

STATUS

approved