Riordan array ((1-x)/(1-3*x+x^2),x/(1-x)) read by rows.

Terms

a(0) =1a(1) =2a(2) =1a(3) =5a(4) =3a(5) =1a(6) =13a(7) =8a(8) =4a(9) =1a(10) =34a(11) =21a(12) =12a(13) =5a(14) =1a(15) =89a(16) =55a(17) =33a(18) =17a(19) =6a(20) =1a(21) =233a(22) =144a(23) =88a(24) =50a(25) =23a(26) =7a(27) =1a(28) =610a(29) =377