Expansion of 1/( (1 + x)^2 * (1 - x*(1 + x)^2) ).

Terms

a(0) =1a(1) =-1a(2) =4a(3) =-1a(4) =11a(5) =7a(6) =35a(7) =52a(8) =138a(9) =267a(10) =606a(11) =1266a(12) =2758a(13) =5882a(14) =12679a(15) =27185a(16) =58442a(17) =125473a(18) =269561a(19) =578929a(20) =1243545a(21) =2670942a(22) =5736984a(23) =12322389a(24) =26467324a(25) =56849060a(26) =122106124a(27) =262271540a(28) =563332877a(29) =1209982051