Riordan transform of the Fibonacci sequence with the Riordan matrix A053121.

Terms

a(0) =0a(1) =1a(2) =1a(3) =4a(4) =6a(5) =18a(6) =32a(7) =85a(8) =165a(9) =411a(10) =839a(11) =2013a(12) =4237a(13) =9933a(14) =21317a(15) =49236a(16) =107014a(17) =244750a(18) =536500a(19) =1218888a(20) =2687362a(21) =6077644a(22) =13453606a(23) =30329434a(24) =67326816a(25) =151439158a(26) =336842092a(27) =756452890a(28) =1684953360a(29) =3779590010