Expansion of 1/((1-x)*(1-3*x)*(1-4*x)*(1-5*x)).

Terms

a(0) =1a(1) =13a(2) =110a(3) =770a(4) =4851a(5) =28623a(6) =161680a(7) =885940a(8) =4749701a(9) =25058033a(10) =130616850a(11) =674656710a(12) =3460370551a(13) =17652592243a(14) =89673093620a(15) =454027521080