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A214050
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Least m>0 such that n! <= F(m), the m-th Fibonacci number, A000045(m).
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2
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1, 3, 6, 9, 12, 16, 20, 24, 29, 34, 39, 44, 49, 55, 60, 66, 72, 78, 84, 90, 96, 103, 109, 116, 123, 129, 136, 143, 150, 157, 164, 172, 179, 186, 194, 201, 209, 216, 224, 231, 239, 247, 255, 263, 271, 278, 286, 295, 303, 311
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OFFSET
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1,2
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LINKS
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EXAMPLE
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a(4) = 9 because F(8) < 4! <= F(9), where F(8) = 13 and F(9) = 21.
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MATHEMATICA
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Table[m=1; While[n!>Fibonacci[m], m++]; m, {n, 1, 100}]
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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