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

Terms

a(0) =1a(1) =1a(2) =0a(3) =4a(4) =-4a(5) =11a(6) =-13a(7) =39a(8) =-73a(9) =144a(10) =-256a(11) =559a(12) =-1116a(13) =2188a(14) =-4317a(15) =8804a(16) =-17591a(17) =34992a(18) =-69815a(19) =140097a(20) =-280416a(21) =560077a(22) =-1119327a(23) =2240719a(24) =-4482527a(25) =8961129a(26) =-17920037a(27) =35847885a(28) =-71699202a(29) =143384383