Reversion of x*(1-2*x)/(1-3*x).

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =1a(4) =5a(5) =3a(6) =-21a(7) =-51a(8) =41a(9) =391a(10) =407a(11) =-1927a(12) =-6227a(13) =2507a(14) =49347a(15) =71109a(16) =-236079a(17) =-966129a(18) =9519a(19) =7408497a(20) =13685205a(21) =-32079981a(22) =-167077221a(23) =-60639939a(24) =1209248505a(25) =2761755543a(26) =-4457338681a(27) =-30629783831a(28) =-22124857219a(29) =206064020315