%I A143591
%S A143591 1,0,2,1,2,1,4,4,8,12,18,28,40,60,91,134,203,302,455,681,1019,1535,2292,
%T A143591 3447,5157,7759,11617,17458,26172,39270,58888,88328,132483,198711,
%U A143591 298005,447096,670645,1005943,1509029,2263285
%N A143591 Number of 1's in row n of A143589 (a Kolakoski fan).
%C A143591 A143590 = A143591 + A143592.
%e A143591 The first 6 rows of A143589 are 1; 2; 1,1; 2,1; 1,1,2; 2,1,2,2. The
%e A143591 respective numbers of 1's are 1,0,2,1,2,1.
%Y A143591 Cf. A000002, A143587, A143589, A143590, A143592.
%Y A143591 Sequence in context: A099875 A079499 A166235 this_sequence A085063 A058511 
               A131044
%Y A143591 Adjacent sequences: A143588 A143589 A143590 this_sequence A143592 A143593 
               A143594
%K A143591 nonn
%O A143591 1,3
%A A143591 Clark Kimberling (ck6(AT)evansville.edu), Aug 25 2008