Describe the n-th Fibonacci number A000045(n).

Terms

a(0) =10a(1) =11a(2) =11a(3) =12a(4) =13a(5) =15a(6) =18a(7) =1113a(8) =1211a(9) =1314a(10) =25a(11) =1819a(12) =1124a(13) =1223a(14) =1327a(15) =161110a(16) =191817a(17) =11151917a(18) =12151814a(19) =14111811a(20) =16171615a(21) =1110191416a(22) =112721a(23) =1218161517a(24) =1416131618a(25) =1715101215a(26) =111211131913a(27) =111916141118a(28) =1311171821