%I #4 Mar 30 2012 18:57:01
%S 1,1,1,2,3,4,7,11,17,28,45,71,116,187,300,487,787,1270,2057,3327,5377,
%T 8704,14081,22774,36855,59629,96467,156096,252563,408631,661194,
%U 1069825,1730974,2800799,4531773,7332501,11864274,19196775
%N a(n)=a(n-1)+a(n-2)-d, where d=a(n/3) if 3 divides n, else d=0; 2 initial terms.
%K nonn
%O 1,4
%A _Clark Kimberling_
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