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A116557
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Backward iterated ( limited ) Fibonacci approximation: A000045.
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0
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1, 3, 6, 11, 19, 32, 52, 85, 139, 225, 365, 592, 958, 1551, 2511, 4064, 6577, 10642, 17220, 27863, 45084, 72948, 118033, 190982, 309016
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| This approximation is used to find how many generations of Fibonacci rabbits it takes to get back to the start: this is set for 25 generations at a start of populaton of an half million rabbits.
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FORMULA
| a(n) = Floor[a(n-1)*(-1/2+Sqrt[5])/2]
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MATHEMATICA
| f[0] = 500000; f[n_] := f[n] = Floor[f[n - 1]*(-1/2 + Sqrt[5]/2)] a = Table[f[n], {n, 25, 1, -1}]
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CROSSREFS
| Cf. A000045.
Sequence in context: A001976 A144115 A183088 * A001911 A020957 A179006
Adjacent sequences: A116554 A116555 A116556 * A116558 A116559 A116560
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KEYWORD
| nonn,uned,obsc
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Mar 16 2006
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