Exponential Riordan array [e^(x/(1-x)),x].

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =2a(5) =1a(6) =13a(7) =9a(8) =3a(9) =1a(10) =73a(11) =52a(12) =18a(13) =4a(14) =1a(15) =501a(16) =365a(17) =130a(18) =30a(19) =5a(20) =1a(21) =4051a(22) =3006a(23) =1095a(24) =260a(25) =45a(26) =6a(27) =1a(28) =37633a(29) =28357