Fibonacci sequence beginning 1, 15.

Terms

a(0) =1a(1) =15a(2) =16a(3) =31a(4) =47a(5) =78a(6) =125a(7) =203a(8) =328a(9) =531a(10) =859a(11) =1390a(12) =2249a(13) =3639a(14) =5888a(15) =9527a(16) =15415a(17) =24942a(18) =40357a(19) =65299a(20) =105656a(21) =170955a(22) =276611a(23) =447566a(24) =724177a(25) =1171743a(26) =1895920a(27) =3067663a(28) =4963583a(29) =8031246