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

Terms

a(0) =1a(1) =0a(2) =2a(3) =4a(4) =11a(5) =44a(6) =130a(7) =480a(8) =1717a(9) =6156a(10) =23114a(11) =86020a(12) =326110a(13) =1247220a(14) =4794570a(15) =18594916a(16) =72465228a(17) =283922848a(18) =1117777030a(19) =4417975380a(20) =17529583825a(21) =69787896620a(22) =278695745200