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

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =5a(6) =10a(7) =19a(8) =36a(9) =69a(10) =135a(11) =258a(12) =500a(13) =963a(14) =1862a(15) =3592a(16) =6940a(17) =13393a(18) =25869a(19) =49939a(20) =96437a(21) =186190a(22) =359531a(23) =694176a(24) =1340393a(25) =2588071a(26) =4997263a(27) =9648958a(28) =18630886a(29) =35973552