Expansion of 1/sqrt(1 -2*x -3*x^2 -4*x^3 +4*x^4).

Terms

a(0) =1a(1) =1a(2) =3a(3) =9a(4) =23a(5) =69a(6) =203a(7) =601a(8) =1815a(9) =5493a(10) =16731a(11) =51225a(12) =157367a(13) =485093a(14) =1499499a(15) =4646233a(16) =14427095a(17) =44880981a(18) =139849979a(19) =436419737a(20) =1363713015a(21) =4266417221a(22) =13362194571a(23) =41891406681a(24) =131452430999a(25) =412835452213