Fib( 0) = 0                             0
Fib( 1) = 1                             0
Fib( 2) = 1                             1
Fib( 3) = 2                             2
Fib( 4) = 3                             4
Fib( 5) = 5                             7
Fib( 6) = 8                            12
Fib( 7) = 13                           20
Fib( 8) = 21                           33
Fib( 9) = 34                           54
Fib(10) = 55                           88
Fib(11) = 89                          143
Fib(12) = 144                         232
Fib(13) = 233                         376
Fib(14) = 377                         609
Fib(15) = 610                         986
Fib(16) = 987                        1596
Fib(17) = 1597                       2583
Fib(18) = 2584                       4180
Fib(19) = 4181                       6764
Fib(20) = 6765                      10945
Fib(21) = 10946                     17710
Fib(22) = 17711                     28656
Fib(23) = 28657                     46367
Fib(24) = 46368                     75024
Fib(25) = 75025                    121392
Fib(26) = 121393                   196417
Fib(27) = 196418                   317810
Fib(28) = 317811                   514228
Fib(29) = 514229                   832039
Fib(30) = 832040                  1346268
Fib(31) = 1346269                 2178308
Fib(32) = 2178309                 3524577
Fib(33) = 3524578                 5702886
Fib(34) = 5702887                 9227464
Fib(35) = 9227465                14930351
Fib(36) = 14930352               24157816
Fib(37) = 24157817               39088168
Fib(38) = 39088169               63245985
Fib(39) = 63245986              102334154
...