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a(2n+1)=a(n), a(2n)=a(n)+a(n-1).
1

%I #4 Mar 30 2012 18:55:50

%S 2,1,3,1,4,3,4,1,5,4,7,3,7,4,5,1,6,5,9,4,11,7,10,3,10,7,11,4,9,5,6,1,

%T 7,6,11,5,14,9,13,4,15,11,18,7,17,10,13,3,13,10,17,7,18,11,15,4,13,9,

%U 14,5,11,6,7,1,8,7,13,6,17,11,16,5,19,14,23,9,22,13,17,4,19

%N a(2n+1)=a(n), a(2n)=a(n)+a(n-1).

%K nonn,easy

%O 0,1

%A _Clark Kimberling_