%I #7 Aug 27 2015 10:28:40
%S 4,20,1,16,6,17,8,12,9,14,5,19,2,15,3,18,7,11,10,13,4,20,1,16,6,17,8,
%T 12,9,14,5,19,2,15,3,18,7,11,10,13,4,20,1,16,6,17,8,12,9,14,5,19,2,15,
%U 3,18,7,11,10,13,4,20,1,16,6,17
%N Numbers on a Manchester or Log-End dartboard, as read in a standard, clockwise direction.
%C Sequence is periodic with period 20. - _Michel Marcus_, Jul 26 2013
%H K. S. Brown, <a href="http://www.mathpages.com/home/kmath025.htm">The Dartboard Sequence</a>
%H Sven Silow, <a href="http://www.thedartmart.com/dart_faq/Sect1/14.htm">Why this particular numbering scheme?</a>
%H <a href="http://www.bdodarts.com/">British Darts Oranization</a>
%H <a href="/index/Rec#order_20">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
%Y Cf. A104158.
%K nonn
%O 0,1
%A Andrew G. West (WestA(AT)wlu.edu), Mar 09 2005