OFFSET
1,2
COMMENTS
a(n)=1 for n=A023039.
LINKS
Zak Seidov, Table of n, a(n) for n = 1..1000
Zak Seidov, Graphic of A180498.
EXAMPLE
a(4)=11 since 4^2-5*floor(4/sqrt(5))^2=16-5=11.
CROSSREFS
KEYWORD
nonn
AUTHOR
Carmine Suriano, Sep 08 2010
STATUS
approved