Expansion of Product_{k>=1} (1 - x^(2*k-1))^(2*k-1)/(1 - x^(2*k))^(2*k).

Terms

a(0) =1a(1) =-1a(2) =2a(3) =-5a(4) =10a(5) =-18a(6) =32a(7) =-59a(8) =106a(9) =-181a(10) =305a(11) =-518a(12) =867a(13) =-1418a(14) =2301a(15) =-3724a(16) =5966a(17) =-9448a(18) =14862a(19) =-23263a(20) =36165a(21) =-55802a(22) =85609a(23) =-130732a(24) =198574a(25) =-299941a(26) =450946a(27) =-675153a(28) =1006395a(29) =-1493598