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%I #27 Jul 19 2021 01:21:00
%S 288,54,90,324,252,0,126,162,216,18,180,234,342,198,36,144,72,306,108,
%T 270
%N The angle of the center of each numbered sector of a standard competition dartboard.
%C A standard dartboard is divided into 20 sectors each subtending an angle of 18 degrees.
%C The sequence is generated by considering the positive x-axis to be running through the center of the sector numbered "6" and defining this to be 0 degrees. The angular position of each sector is then defined relative to this position through a clockwise rotation of a line collinear with x until the line divides the sector of interest. The numbers are then sectors are ordered from 1 to 20 generating the full sequence.
%C It is a mere formality to fully define the bounds of each sector by adding and subtracting 9 degrees from each of the numbers in the sequence.
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Darts">Darts</a>
%F n = A003833(a(n)/18+6). - _Jens Kruse Andersen_, Jul 19 2014
%Y Cf. A003833, A008575.
%K nonn,fini,full
%O 1,1
%A _Philip Mizzi_, Jun 29 2014
%E Incorrect term removed by _Jens Kruse Andersen_, Jul 19 2014