Riordan array (1/(1-2*x), x*(1+x)/(1-2*x)).

Terms

a(0) =1a(1) =2a(2) =1a(3) =4a(4) =5a(5) =1a(6) =8a(7) =16a(8) =8a(9) =1a(10) =16a(11) =44a(12) =37a(13) =11a(14) =1a(15) =32a(16) =112a(17) =134a(18) =67a(19) =14a(20) =1a(21) =64a(22) =272a(23) =424a(24) =305a(25) =106a(26) =17a(27) =1a(28) =128a(29) =640