The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A305576 List points (x,y) having integer coordinates, sorted first by radial coordinate r and in case of ties, by polar angle 0 <= phi < 2*Pi in a polar coordinate system. Sequence gives y-coordinates. 10
 0, 0, 1, 0, -1, 1, 1, -1, -1, 0, 2, 0, -2, 1, 2, 2, 1, -1, -2, -2, -1, 2, 2, -2, -2, 0, 3, 0, -3, 1, 3, 3, 1, -1, -3, -3, -1, 2, 3, 3, 2, -2, -3, -3, -2, 0, 4, 0, -4, 1, 4, 4, 1, -1, -4, -4, -1, 3, 3, -3, -3, 2, 4, 4, 2, -2, -4, -4, -2, 0, 3, 4, 5, 4, 3, 0, -3, -4, -5, -4, -3, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,11 COMMENTS Similar to A283308, but with secondary sorting by polar angle. LINKS Rainer Rosenthal, Table of n, a(n) for n = 0..17664, covering range r <= 75 (terms 0..7844 from Hugo Pfoertner). EXAMPLE See A305575. PROG (PARI) provided in A305575. CROSSREFS For the x-coordinates see A305575. Cf. A000328, A004018, A283307, A283308, A307014, A307016, A307017, A308080, A308081. Sequence in context: A029354 A035434 A029223 * A129679 A319514 A141454 Adjacent sequences:  A305573 A305574 A305575 * A305577 A305578 A305579 KEYWORD sign,look AUTHOR Hugo Pfoertner, Jun 05 2018 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 11 00:32 EDT 2020. Contains 336403 sequences. (Running on oeis4.)