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!)
A119677 a(n) is the number of complete squares that fit inside the circle with radius n, drawn on squared paper. 1

%I

%S 0,0,4,16,32,60,88,120,164,216,276,332,392,476,556,648,732,832,936,

%T 1052,1176,1288,1428,1560,1696,1860,2016,2180,2340,2512,2700,2876,

%U 3080,3276,3488,3712,3908,4144,4360,4620,4864,5096,5356,5616,5900

%N a(n) is the number of complete squares that fit inside the circle with radius n, drawn on squared paper.

%C a(n) = 4 * A001182(n).

%C As n -> infinity, lim a(n)/(n^2) -> pi.

%Y Cf. A001182.

%K nonn

%O 0,3

%A Tomas Kyselica (Tomas.Kyselica(AT)gmail.com), Jul 29 2006

%E More terms from _Don Reble_, Aug 01 2006

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 June 25 09:38 EDT 2022. Contains 354835 sequences. (Running on oeis4.)