Coefficients of the expansion of Sum_{i,j,k>=1} x^(i*j*k)/((1-x^i)*(1-x^j)*(1-x^k)).

Terms

a(0) =1a(1) =6a(2) =15a(3) =34a(4) =54a(5) =96a(6) =130a(7) =196a(8) =255a(9) =349a(10) =417a(11) =570a(12) =652a(13) =823a(14) =954a(15) =1180a(16) =1299a(17) =1602a(18) =1732a(19) =2089a(20) =2280a(21) =2659a(22) =2820a(23) =3375a(24) =3541a(25) =4078a(26) =4321a(27) =4963a(28) =5139a(29) =5970