Fibonacci sequence beginning 1, 31.

Terms

a(0) =1a(1) =31a(2) =32a(3) =63a(4) =95a(5) =158a(6) =253a(7) =411a(8) =664a(9) =1075a(10) =1739a(11) =2814a(12) =4553a(13) =7367a(14) =11920a(15) =19287a(16) =31207a(17) =50494a(18) =81701a(19) =132195a(20) =213896a(21) =346091a(22) =559987a(23) =906078a(24) =1466065a(25) =2372143a(26) =3838208a(27) =6210351a(28) =10048559a(29) =16258910