%I A099869
%S A099869 1,4,23,197,2056,23714,290512,3707852,48760367,656043857,8987427467,
%T A099869 124936258127,1757900019101,24987199492705,358268702159069,
%U A099869 5175497420902741,75254198337177848,1100534370899151722
%N A099869 Bisection of A014137.
%F A099869 a(n)=sum(binomial(2k, k)/(k+1), k=0..2n). - Emeric Deutsch (deutsch(AT)duke.poly.edu), 
               Dec 20 2004
%p A099869 a:=n->sum(binomial(2*k,k)/(k+1),k=0..2*n): seq(a(n),n=0..20); (Deutsch)
%Y A099869 Cf. A014137, A099975.
%Y A099869 Cf. A000108.
%Y A099869 Sequence in context: A056814 A058863 A108953 this_sequence A056785 A105747 
               A099692
%Y A099869 Adjacent sequences: A099866 A099867 A099868 this_sequence A099870 A099871 
               A099872
%K A099869 nonn,easy
%O A099869 0,2
%A A099869 N. J. A. Sloane (njas(AT)research.att.com), Nov 19 2004
%E A099869 More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Dec 20 2004