%I #8 Sep 21 2013 12:47:33
%S 4,8,12,17,4,8,12,18,4,8,12,19,4,8,12,20,4,8,12,21,4,8,12,22,4,8,12,
%T 23,4,8,12,24,4,8,12,25,4,8,12,26,4,8,12,27,4,8,12,28,4,8,12,17,4,8,
%U 12,18,4,8,12,19,4,8,12,20,4,8,12,21,4,8,12,22,4,8,12,23,4,8,12,24,4,8,12,25
%N Westminster chimes at 15-minute intervals (2).
%e First quarter hour: x x x x
%e second quarter hour: x x x x, x x x x
%e third quarter hour: x x x x, x x x x, x x x x
%e one o'clock: x x x x, x x x x, x x x x, x x x x, X
%e first quarter hour: x x x x
%e second quarter hour: x x x x, x x x x
%e third quarter hour: x x x x, x x x x, x x x x
%e two o'clock: x x x x, x x x x, x x x x, x x x x, X X
%e ...
%K nonn
%O 1,1
%A _Colin Mallows_