This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A052038 First nonzero digit in expansion of 1/n. 3
 1, 5, 3, 2, 2, 1, 1, 1, 1, 1, 9, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The number of times each digit occurs for numbers < 10^k: ...\a(n)==1.........2.......3........4........5........6........7........8........9 10^k\ 1.........5.........2........1........0........1........0........0........0........0 2........55........19........9........5........5........2........2........1........1 3.......555.......186.......92.......55.......39.......26.......19.......15.......12 4......5555......1853......925......555......373......264......197......154......123 5.....55555.....18520.....9258.....5555.....3707.....2645.....1982.....1543.....1234 6....555556....185187....92591....55555....37041....26454....19839....15432....12345 7...5555555...1851854...925924...555555...370375...264549...198410...154321...123456 8..55555555..18518521..9259257..5555555..3703709..2645501..1984124..1543210..1234567 9.555555555.185185188.92592590.55555555.37037043.26455025.19841266.15432099.12345678 ... Inf. ...5/9......5/27.....5/54.....5/90.....1/27........?........?........?........? LINKS FORMULA a(n) = floor(10^floor(1+log10(n-1))/n). After 10^k terms the number of times m will have appeared will be about 10^(k+1)/(9*m*(m+1)), e.g., 1 will appear just over 55.5% of the time. - Henry Bottomley, May 11 2001 a(n) = A000030(floor(A011557(k)/n)) for k >= A004218(n). - Reinhard Zumkeller, Feb 27 2011 MATHEMATICA f[n_] := RealDigits[1/n, 10, 12][[1, 1]]; Array[f, 105] CROSSREFS Cf. A052039, A033330, A033420, A061861. Sequence in context: A317674 A201333 A088324 * A278647 A249802 A249574 Adjacent sequences:  A052035 A052036 A052037 * A052039 A052040 A052041 KEYWORD nonn,base,easy AUTHOR Patrick De Geest, Dec 15 1999 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 23 12:25 EDT 2018. Contains 316528 sequences. (Running on oeis4.)