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 A064565 Reciprocal of n terminates with an infinite repetition of digit 6. Multiples of 10 are omitted. 6
 6, 15, 24, 96, 375, 384, 1536, 6144, 9375, 24576, 98304, 234375, 393216, 1572864, 5859375, 6291456, 25165824, 100663296, 146484375, 402653184, 1610612736, 3662109375, 6442450944, 25769803776, 91552734375, 103079215104 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 73-82. LINKS FORMULA Numbers of the form 3*2^(2i+1) and 3*5^(2i+1) [i >= 0]. EXAMPLE 1/6291456 = 0.0000001589457194010416666666666... MATHEMATICA Module[{r5=20, r2}, r2=Ceiling[r5*Log[2, 5]]; Flatten[{3*2^Range[ 1, r2, 2], 3*5^Range[ 1, r5, 2]}]]//Sort (* Harvey P. Dale, Oct 15 2017 *) PROG (ARIBAS): a064560(1, 500000000, 6, 36). For definition of a064560 see A064560. CROSSREFS Cf. A064560, A064561, A064562, A064563, A064564, A064566, A064567. Sequence in context: A052220 A217747 A242405 * A190515 A051940 A020207 Adjacent sequences:  A064562 A064563 A064564 * A064566 A064567 A064568 KEYWORD nonn,base AUTHOR Patrick De Geest, Sep 20 2001 EXTENSIONS More terms from Klaus Brockhaus, Sep 21 2001 Further terms from James A. Sellers, Sep 28 2001 STATUS approved

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Last modified January 26 23:05 EST 2020. Contains 331289 sequences. (Running on oeis4.)