Expansion of Product_{i>=1, j>=1, k>=1} 1/(1 - x^(i*j*k))^(i*j*k).

Terms

a(0) =1a(1) =1a(2) =7a(3) =16a(4) =61a(5) =130a(6) =429a(7) =945a(8) =2684a(9) =5990a(10) =15530a(11) =34313a(12) =83995a(13) =183070a(14) =427046a(15) =919480a(16) =2067589a(17) =4384678a(18) =9577536a(19) =20019243a(20) =42664087a(21) =87954522a(22) =183573639a(23) =373430131a(24) =765524808a(25) =1537737243a(26) =3102614407a(27) =6159028445a(28) =12252086879a(29) =24051526041