E.g.f. exp(log(1+x)/exp(x)).

Terms

a(0) =1a(1) =1a(2) =-2a(3) =0a(4) =18a(5) =-85a(6) =155a(7) =1057a(8) =-13636a(9) =86361a(10) =-271783a(11) =-1518539a(12) =35743378a(13) =-376883351a(14) =2663534939a(15) =-8383983593a(16) =-117620643336