%I A081861
%S A081861 0,1,5,14,31,55,91,146,204,285,400,506,655,850,1015,1240,1552,1804,2109,
%T A081861 2562,2870,3311,3971,4324,4914,5730,6201,6990,8000,8555,9455,10846,
%U A081861 11536,12529,14192,14910,16206,18371,19088,20540,22990,23821,25794
%N A081861 (1/24)*(sigma_3(2n-1)-sigma_1(2n-1)).
%Y A081861 Cf. A000203, A001158.
%Y A081861 Sequence in context: A000330 A166068 A070129 this_sequence A023652 A101648 
               A070134
%Y A081861 Adjacent sequences: A081858 A081859 A081860 this_sequence A081862 A081863 
               A081864
%K A081861 nonn
%O A081861 1,3
%A A081861 Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 11 2003