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

Terms

a(0) =1a(1) =-1a(2) =-3a(3) =0a(4) =0a(5) =9a(6) =5a(7) =4a(8) =-1a(9) =-27a(10) =-2a(11) =-33a(12) =-17a(13) =8a(14) =43a(15) =92a(16) =36a(17) =100a(18) =-8a(19) =-11a(20) =-136a(21) =-120a(22) =-296a(23) =-363a(24) =-13a(25) =-203a(26) =286a(27) =306a(28) =1010a(29) =667