Expansion of e.g.f. arcsin(x)*exp(x).

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =8a(5) =24a(6) =80a(7) =456a(8) =2368a(9) =20352a(10) =139648a(11) =1577984a(12) =13327360a(13) =185992832a(14) =1860708096a(15) =30882985472a(16) =356724338688