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A085837
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Denominators of unit fractions having periodic decimal expansions.
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2
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3, 6, 7, 9, 11, 12, 13, 14, 15, 17, 18, 19, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Complement of A003592.
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LINKS
| Eric Weisstein's World of Mathematics, Repeating Decimal
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EXAMPLE
| 1/3=0.3333..., 1/6=0.16666..., 1/7=0.142857142857..., ...
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MATHEMATICA
| Select[ Range[84], MatchQ[ RealDigits[1/#], {{___, {__}}, 0|-1}] &] (* From Jean-François Alcover, Nov 07 2011 *)
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CROSSREFS
| Cf. A003592.
Sequence in context: A138933 A071530 A005767 * A176237 A186348 A071822
Adjacent sequences: A085834 A085835 A085836 * A085838 A085839 A085840
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KEYWORD
| nonn,easy,nice
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), Jul 04, 2003
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