Convolution of natural numbers >= 2 and (F(2), F(3), F(4), ...).

Terms

a(0) =2a(1) =7a(2) =16a(3) =32a(4) =59a(5) =104a(6) =178a(7) =299a(8) =496a(9) =816a(10) =1335a(11) =2176a(12) =3538a(13) =5743a(14) =9312a(15) =15088a(16) =24435a(17) =39560a(18) =64034a(19) =103635a(20) =167712a(21) =271392a(22) =439151a(23) =710592a(24) =1149794a(25) =1860439a(26) =3010288a(27) =4870784a(28) =7881131a(29) =12751976