E.g.f.: exp(x + 3/2*x^2).

Terms

a(0) =1a(1) =1a(2) =4a(3) =10a(4) =46a(5) =166a(6) =856a(7) =3844a(8) =21820a(9) =114076a(10) =703216a(11) =4125496a(12) =27331624a(13) =175849480a(14) =1241782816a(15) =8627460976a(16) =64507687696a(17) =478625814544