Expansion of (1/x) * Series_Reversion( x*(1+x-x^4)/(1+x)^3 ).

Terms

a(0) =1a(1) =2a(2) =5a(3) =14a(4) =43a(5) =143a(6) =507a(7) =1885a(8) =7247a(9) =28523a(10) =114190a(11) =463179a(12) =1898892a(13) =7855615a(14) =32754687a(15) =137520639a(16) =580920600a(17) =2467305352a(18) =10530055735a(19) =45135757683a(20) =194224957674a(21) =838729701308