First differences of A001628 (Fibonacci convolution).

Terms

a(0) =1a(1) =2a(2) =6a(3) =13a(4) =29a(5) =60a(6) =122a(7) =241a(8) =468a(9) =894a(10) =1686a(11) =3144a(12) =5807a(13) =10636a(14) =19338a(15) =34931a(16) =62731a(17) =112068a(18) =199264a(19) =352787a(20) =622152a(21) =1093260a(22) =1914780a(23) =3343440a(24) =5821645a(25) =10110278a(26) =17515566a(27) =30276073a(28) =52221929a(29) =89896332