Expansion of series reversion of x/(1 + x + 2*x^4).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =11a(6) =31a(7) =71a(8) =157a(9) =397a(10) =1141a(11) =3301a(12) =9087a(13) =24311a(14) =66067a(15) =185771a(16) =532121a(17) =1520889a(18) =4316233a(19) =12255913a(20) =35079739a(21) =101232419a(22) =293236615a(23) =849895311a(24) =2465119669a(25) =7167636741a(26) =20909386941a(27) =61162159501a(28) =179214613111a(29) =525803297743