Expansion of x*(1+3*x+12*x^2)/(1-24*x^3).

Terms

a(0) =1a(1) =3a(2) =12a(3) =24a(4) =72a(5) =288a(6) =576a(7) =1728a(8) =6912a(9) =13824a(10) =41472a(11) =165888a(12) =331776a(13) =995328a(14) =3981312a(15) =7962624a(16) =23887872a(17) =95551488a(18) =191102976a(19) =573308928a(20) =2293235712a(21) =4586471424a(22) =13759414272a(23) =55037657088a(24) =110075314176a(25) =330225942528