E.g.f.: sin(log(1+x))*log(1+x)/2.

Terms

a(0) =0a(1) =0a(2) =1a(3) =-3a(4) =9a(5) =-30a(6) =107a(7) =-357a(8) =492a(9) =11520a(10) =-234440a(11) =3556520a(12) =-51373780a(13) =750804600a(14) =-11349186700a(15) =179062886100