A050195 - OEIS

%I #4 Mar 30 2012 18:57:01

%S 1,1,2,3,4,7,11,18,29,46,75,121,196,317,511,828,1339,2167,3506,5670,

%T 9176,14846,24022,38868,62886,101754,164640,266394,431034,697421,

%U 1128455,1825876,2954331,4780207,7734527,12514734,20249261

%N a(n)=a(n-1)+a(n-2)-d, where d=a(n/5) if 5 divides n, else d=0; 2 initial terms.

%K nonn

%O 1,3

%A _Clark Kimberling_