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
KEYWORD
sign,look
AUTHOR
Hugo Pfoertner, Jun 05 2018
STATUS
approved