Riordan matrix (1/(1-4x),(1-sqrt(1-4x))/2).

Terms

a(0) =1a(1) =4a(2) =1a(3) =16a(4) =5a(5) =1a(6) =64a(7) =22a(8) =6a(9) =1a(10) =256a(11) =93a(12) =29a(13) =7a(14) =1a(15) =1024a(16) =386a(17) =130a(18) =37a(19) =8a(20) =1a(21) =4096a(22) =1586a(23) =562a(24) =176a(25) =46a(26) =9a(27) =1a(28) =16384a(29) =6476