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Search: id:A092906
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| A092906 |
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Number of iterations of the sine function to be less than 1/n with an initial argument of Pi/2 radian. |
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+0 1
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| 2, 10, 24, 45, 71, 104, 143, 188, 239, 296, 359, 427, 502, 583, 670, 763, 862, 967, 1078, 1195, 1318, 1447, 1582, 1723, 1870, 2023, 2181, 2346, 2517, 2694, 2877, 3066, 3261, 3462, 3669, 3882, 4101, 4326, 4557, 4794, 5037, 5286, 5541, 5802, 6069, 6342, 6621
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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0.50217... whereas sin(0.50217...) =~ 0.48132...
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MATHEMATICA
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A092906[n_] := Block[{k = 1}, While[ N[ Nest[ Sin, Pi/2, k], 64] >= 1/n, k++ ]; k]; Table[ A092906[n], {n, 47}]
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CROSSREFS
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Sequence in context: A120548 A120845 A049450 this_sequence A130016 A120550 A119062
Adjacent sequences: A092903 A092904 A092905 this_sequence A092907 A092908 A092909
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KEYWORD
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nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 13 2004
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