%I A023847
%S A023847 2,4,4,6,8,8,11,11,11,13,13,13,18,16,17,17,19,18,18,22,24,21,23,23,24,
               28,26,
%T A023847 26,30,29,32,28,30,31,31,32,35,35,36,36,36,37,33,35,38,36,39,36,40,40,
               41,45,
%U A023847 48,43,46,46,45,50,47,49,52,52,49,46,51,51,50,50,55,51,57,54,57,57,55,
               59,62
%N A023847 Sum of exponents in prime-power factorization of C(5n,2n).
%Y A023847 Sequence in context: A002131 A063200 A063224 this_sequence A000061 A153176 
               A112921
%Y A023847 Adjacent sequences: A023844 A023845 A023846 this_sequence A023848 A023849 
               A023850
%K A023847 nonn
%O A023847 1,1
%A A023847 Clark Kimberling (ck6(AT)evansville.edu)