Expansion of e.g.f.: exp(x*(1+x)^x).

Terms

a(0) =1a(1) =1a(2) =1a(3) =7a(4) =13a(5) =101a(6) =361a(7) =2269a(8) =18201a(9) =48817a(10) =1436401a(11) =-2283269a(12) =157443397a(13) =-826037939a(14) =21355181849a(15) =-160556822999