Expansion of Sum_{k>=0} x^k / Product_{j=1..k} (1 + x^j)^j.

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =-2a(5) =1a(6) =-2a(7) =1a(8) =-4a(9) =7a(10) =-5a(11) =7a(12) =-7a(13) =16a(14) =-13a(15) =16a(16) =-33a(17) =38a(18) =-39a(19) =31a(20) =-75a(21) =79a(22) =-92a(23) =118a(24) =-139a(25) =201a(26) =-230a(27) =269a(28) =-264a(29) =494