Riordan array [(1-x)exp(x/(1-x)),x].

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =4a(7) =3a(8) =0a(9) =1a(10) =21a(11) =16a(12) =6a(13) =0a(14) =1a(15) =136a(16) =105a(17) =40a(18) =10a(19) =0a(20) =1a(21) =1045a(22) =816a(23) =315a(24) =80a(25) =15a(26) =0a(27) =1a(28) =9276a(29) =7315