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

Terms

a(0) =1a(1) =2a(2) =5a(3) =12a(4) =30a(5) =76a(6) =196a(7) =512a(8) =1352a(9) =3600a(10) =9648a(11) =25984a(12) =70240a(13) =190400a(14) =517184a(15) =1406976a(16) =3831936a(17) =10445056a(18) =28488448a(19) =77735936a(20) =212186624a(21) =579320832a(22) =1581966336a(23) =4320477184a(24) =11800692736a(25) =32233951232