%I A059620
%S A059620 0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,
%T A059620 1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0,1,0,1,0,0,1,
%U A059620 0,1,0,1,0,0,1,0,1,0,0,1,0,1,0,1,0,0
%N A059620 Colors of the 88 keys of the standard piano: white keys = 0, black keys 
               = 1.
%F A059620 a(n) = floor((5n+7)/12) - floor((5n+2)/12). - David W. Wilson (davidwwilson(AT)comcast.net), 
               Mar 02 2003
%e A059620 .1..1.1..1.1.1..1.1..1.1.1..1.1..1.1.1..1.1..1.1.1..1.1..1.1.1..1.1..1.1.1..1.1..1.1.1
%e A059620 0.00.0.00.0.0.00.0.00.0.0.00.0.00.0.0.00.0.00.0.0.00.0.00.0.0.00.0.00.0.0.00.0.00.0.0.00
%Y A059620 Cf. A081031, A081032.
%Y A059620 Sequence in context: A003849 A115199 A085242 this_sequence A083651 A111748 
               A130198
%Y A059620 Adjacent sequences: A059617 A059618 A059619 this_sequence A059621 A059622 
               A059623
%K A059620 easy,fini,full,nonn,nice
%O A059620 0,1
%A A059620 Naohiro Nomoto (6284968128(AT)geocities.co.jp), Feb 19 2001