OFFSET
0,2
COMMENTS
Old name was "a(n)=ceiling[area of a circle of radius n]".
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
MATHEMATICA
Ceiling[Pi Range[50]^2] (* Harvey P. Dale, Oct 10 2011 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Mohammad K. Azarian, Feb 29 2008
EXTENSIONS
New name (using explicit formula), Joerg Arndt, Feb 19 2013
STATUS
approved