| Noah's Ark - Fibonacci Population Growth Estimator |
| 1. Enter the original number of animal pairs (A0)in Cell B4 |
| 2. Using the table below, find the number of animal pairs at the end of each year. |
| Enter A0 ---> | 1 |
| Year | Population | Year | Population | Year | Population | Year | Population | Year | Population |
| 0 | 1 | 13 | 377 | 26 | 196,418 | 39 | 102,334,155 | 52 | 53,316,291,173 |
| 1 | 1 | 14 | 610 | 27 | 317,811 | 40 | 165,580,141 | 53 | 86,267,571,272 |
| 2 | 2 | 15 | 987 | 28 | 514,229 | 41 | 267,914,296 | 54 | 139,583,862,445 |
| 3 | 3 | 16 | 1,597 | 29 | 832,040 | 42 | 433,494,437 | 55 | 225,851,433,717 |
| 4 | 5 | 17 | 2,584 | 30 | 1,346,269 | 43 | 701,408,733 | 56 | 365,435,296,162 |
| 5 | 8 | 18 | 4,181 | 31 | 2,178,309 | 44 | 1,134,903,170 | 57 | 591,286,729,879 |
| 6 | 13 | 19 | 6,765 | 32 | 3,524,578 | 45 | 1,836,311,903 | 58 | 956,722,026,041 |
| 7 | 21 | 20 | 10,946 | 33 | 5,702,887 | 46 | 2,971,215,073 | 59 | 1,548,008,755,920 |
| 8 | 34 | 21 | 17,711 | 34 | 9,227,465 | 47 | 4,807,526,976 | 60 | 2,504,730,781,961 |
| 9 | 55 | 22 | 28,657 | 35 | 14,930,352 | 48 | 7,778,742,049 | 61 | 4,052,739,537,881 |
| 10 | 89 | 23 | 46,368 | 36 | 24,157,817 | 49 | 12,586,269,025 | 62 | 6,557,470,319,842 |
| 11 | 144 | 24 | 75,025 | 37 | 39,088,169 | 50 | 20,365,011,074 | 63 | 10,610,209,857,723 |
| 12 | 233 | 25 | 121,393 | 38 | 63,245,986 | 51 | 32,951,280,099 | 64 | 17,167,680,177,565 |