Fibonacci sequence beginning 5, 16.

Terms

a(0) =5a(1) =16a(2) =21a(3) =37a(4) =58a(5) =95a(6) =153a(7) =248a(8) =401a(9) =649a(10) =1050a(11) =1699a(12) =2749a(13) =4448a(14) =7197a(15) =11645a(16) =18842a(17) =30487a(18) =49329a(19) =79816a(20) =129145a(21) =208961a(22) =338106a(23) =547067a(24) =885173a(25) =1432240a(26) =2317413a(27) =3749653a(28) =6067066a(29) =9816719