a(n) = a(n-1) + Fibonacci(n), a(1)=5.

Terms

a(0) =5a(1) =6a(2) =8a(3) =11a(4) =16a(5) =24a(6) =37a(7) =58a(8) =92a(9) =147a(10) =236a(11) =380a(12) =613a(13) =990a(14) =1600a(15) =2587a(16) =4184a(17) =6768a(18) =10949a(19) =17714a(20) =28660a(21) =46371a(22) =75028a(23) =121396a(24) =196421a(25) =317814a(26) =514232a(27) =832043a(28) =1346272a(29) =2178312