Expansion of sin(x)/(1-x).

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =20a(5) =101a(6) =606a(7) =4241a(8) =33928a(9) =305353a(10) =3053530a(11) =33588829a(12) =403065948a(13) =5239857325a(14) =73358002550