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

Terms

a(0) =1a(1) =2a(2) =5a(3) =15a(4) =52a(5) =200a(6) =824a(7) =3549a(8) =15745a(9) =71343a(10) =328537a(11) =1532838a(12) =7230341a(13) =34425026a(14) =165230211a(15) =798643501a(16) =3884110353a(17) =18993027790a(18) =93325418867a(19) =460562269745