Expansion of (1-5*x+6*x^2-x^3)/((1-x)*(1-2*x)*(1-3*x)*(1-4*x)).

Terms

a(0) =1a(1) =5a(2) =21a(3) =84a(4) =331a(5) =1300a(6) =5111a(7) =20144a(8) =79611a(9) =315420a(10) =1252351a(11) =4980904a(12) =19837091a(13) =79086740a(14) =315557991a(15) =1259856864a(16) =5032285771a(17) =20107685260a(18) =80366302031a(19) =321271760024