Riordan array (1/(1-x-x^2)^2, x/(1-x-x^2)^2).

Terms

a(0) =1a(1) =2a(2) =1a(3) =5a(4) =4a(5) =1a(6) =10a(7) =14a(8) =6a(9) =1a(10) =20a(11) =40a(12) =27a(13) =8a(14) =1a(15) =38a(16) =105a(17) =98a(18) =44a(19) =10a(20) =1a(21) =71a(22) =256a(23) =315a(24) =192a(25) =65a(26) =12a(27) =1a(28) =130a(29) =594