Expansion of (1 - 4*x - (1-2*x)*sqrt(1-4*x-4*x^2))/(8*x^3).

Terms

a(0) =0a(1) =1a(2) =4a(3) =16a(4) =64a(5) =260a(6) =1072a(7) =4480a(8) =18944a(9) =80928a(10) =348800a(11) =1515008a(12) =6625280a(13) =29147456a(14) =128918272a(15) =572928000a(16) =2557100032a(17) =11457170944a(18) =51514963968a(19) =232370167808