Expansion of e.g.f. exp(x + x^2 * exp(x)).

Terms

a(0) =1a(1) =1a(2) =3a(3) =13a(4) =61a(5) =341a(6) =2221a(7) =16045a(8) =127065a(9) =1097353a(10) =10231561a(11) =102133241a(12) =1085537509a(13) =12228389629a(14) =145369356861