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A100586
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Write down the numbers from 3 to infinity. Take next number, M say, that has not been crossed off. Counting through the numbers that have not yet been crossed off after that M, cross off every 5-th term. Repeat, always crossing off every 5-th term of those that remain. The numbers that are left form the sequence.
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1
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3, 4, 5, 6, 7, 9, 11, 14, 17, 21, 26, 32, 40, 50, 62, 77, 96, 120, 150, 187, 234, 292, 365, 456, 570, 712, 890, 1112, 1390, 1737, 2171, 2714, 3392, 4240, 5300, 6625, 8281, 10351, 12939, 16174, 20217, 25271, 31589, 39486, 49357, 61696, 77120
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| "Sieves", Popular Computing (Calabasas, CA), Vol. 2 (No. 13, Apr 1974), pp. 6-7; sieve #6 (K=5).
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LINKS
| Index entries for sequences generated by sieves
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MATHEMATICA
| t = Range[3, 80000]; r = {}; While[Length[t] > 0, AppendTo[r, First[t]]; t = Drop[t, {1, -1, 5}]; ]; r - from Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 02 2004
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CROSSREFS
| Cf. A003309, A003310, A100464, A100562, A003312, A003311, A052548, A100585.
Sequence in context: A081692 A161346 A096515 * A139372 A128659 A022555
Adjacent sequences: A100583 A100584 A100585 * A100587 A100588 A100589
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Dec 01 2004
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