%I A024890
%S A024890 0,0,1,0,1,1,1,1,2,1,2,2,1,2,2,2,2,3,3,2,3,3,2,3,3,3,3,4,4,4,4,3,4,4,3,
               4,4,
%T A024890 3,5,5,5,4,5,5,5,5,4,5,5,5,5,5,5,6,6,5,6,6,5,5,6,6,5,6,6,6,6,5,7,7,7,7,
               7,6,
%U A024890 7,7,7,7,7,7,6,7,7,6,7,7,7,8,7,8,7,8,8,8,8,7,8,7,8,8,8,8,7,8,8,8,8,9,8,
               8,9
%N A024890 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], 
               s = A023531, t = A014306.
%Y A024890 Sequence in context: A107800 A085761 A102382 this_sequence A007895 A053260 
               A140223
%Y A024890 Adjacent sequences: A024887 A024888 A024889 this_sequence A024891 A024892 
               A024893
%K A024890 nonn
%O A024890 2,9
%A A024890 Clark Kimberling (ck6(AT)evansville.edu)