Expansion of exp(2*x)*(1+x)/(1-x)^2.

Terms

a(0) =1a(1) =5a(2) =26a(3) =146a(4) =904a(5) =6232a(6) =47920a(7) =409712a(8) =3873152a(9) =40220288a(10) =455828224a(11) =5604002560a(12) =74326764544