Expansion of (1/x) * Series_Reversion( x / (1+x+x^3/(1+x)) ).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =7a(6) =14a(7) =30a(8) =62a(9) =131a(10) =287a(11) =629a(12) =1385a(13) =3096a(14) =6967a(15) =15735a(16) =35782a(17) =81823a(18) =187781a(19) =432689a(20) =1000919a(21) =2322584a(22) =5405094a(23) =12614260a(24) =29512587a(25) =69205602a(26) =162634994a(27) =382961435a(28) =903431963a(29) =2134945637