a(n) = Fibonacci(n+6) - Fibonacci(6).

Terms

a(0) =0a(1) =5a(2) =13a(3) =26a(4) =47a(5) =81a(6) =136a(7) =225a(8) =369a(9) =602a(10) =979a(11) =1589a(12) =2576a(13) =4173a(14) =6757a(15) =10938a(16) =17703a(17) =28649a(18) =46360a(19) =75017a(20) =121385a(21) =196410a(22) =317803a(23) =514221a(24) =832032a(25) =1346261a(26) =2178301a(27) =3524570a(28) =5702879a(29) =9227457