Fibonacci sequence beginning 1, 12.

Terms

a(0) =1a(1) =12a(2) =13a(3) =25a(4) =38a(5) =63a(6) =101a(7) =164a(8) =265a(9) =429a(10) =694a(11) =1123a(12) =1817a(13) =2940a(14) =4757a(15) =7697a(16) =12454a(17) =20151a(18) =32605a(19) =52756a(20) =85361a(21) =138117a(22) =223478a(23) =361595a(24) =585073a(25) =946668a(26) =1531741a(27) =2478409a(28) =4010150a(29) =6488559