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Search: id:A091657
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| A091657 |
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First occurrence of 1..n as terms in the continued fraction for Pi. |
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+0
2
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| 4, 9, 9, 30, 40, 40, 40, 44, 130, 130, 276, 276, 276, 276, 276, 276, 647, 647, 647, 647, 647, 647, 647, 647, 791, 791, 791, 791, 791, 791, 878, 878, 878, 878, 1008, 1008, 1008, 3041, 3041, 3041, 3041, 3041, 3041, 3041, 3041, 3200, 3200, 3200, 3200, 3200, 3200
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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f[n_] := Block[{k = 1}, While[ StringPosition[ ToString[ Union[ ContinuedFraction[Pi, k]]], StringDrop[ ToString[ Table[i, {i, n}]], -1]] == {}, k++ ]; k]; Table[ f[n], {n, 1, 51}]
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CROSSREFS
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Cf. A001203, A032523.
Adjacent sequences: A091654 A091655 A091656 this_sequence A091658 A091659 A091660
Sequence in context: A095873 A141801 A081949 this_sequence A088037 A071768 A020673
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KEYWORD
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cofr,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 26 2004
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