%I A049867
%S A049867 1,1,4,5,10,17,33,61,115,214,400,746,1393,2600,4854,9061,16915,31576,
%T A049867 58945,110036,205411,383453,715815,1336255,2494468,4656574,8692708,
%U A049867 16227203,30292300,56548466,105562437,197059777,367863388
%N A049867 a(n)=Sum{a(k): k=0,1,2,...,n-4,n-2,n-1}; a(n-3) is not a summand; 3 initial 
               terms required.
%F A049867 a(n)=2*a(n-1)-a(n-3)+a(n-4); 4 initial terms required.
%Y A049867 Sequence in context: A058594 A022309 A049897 this_sequence A054173 A049898 
               A166577
%Y A049867 Adjacent sequences: A049864 A049865 A049866 this_sequence A049868 A049869 
               A049870
%K A049867 nonn
%O A049867 0,3
%A A049867 Clark Kimberling (ck6(AT)evansville.edu)