OFFSET
1,1
COMMENTS
A085263(a(n))=1; are there more?
No more terms through 625000000. - Ryan Propper, Jan 05 2008
LINKS
Eric Weisstein's World of Mathematics, Square Numbers.
Eric Weisstein's World of Mathematics, Squarefree
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
Reinhard Zumkeller, Jun 23 2003
STATUS
approved