login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A061861 First two significant digits of 1/n written in decimal. 1
10, 50, 33, 25, 20, 16, 14, 12, 11, 10, 90, 83, 76, 71, 66, 62, 58, 55, 52, 50, 47, 45, 43, 41, 40, 38, 37, 35, 34, 33, 32, 31, 30, 29, 28, 27, 27, 26, 25, 25, 24, 23, 23, 22, 22, 21, 21, 20, 20, 20, 19, 19, 18, 18, 18, 17, 17, 17, 16, 16, 16, 16, 15, 15, 15, 15, 14, 14, 14 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
After 10^k terms the number of times m will have appeared will be about 10^(k+2)/(9*m*(m+1)); e.g., 10 will appear just over 10.1% of the time.
LINKS
FORMULA
a(n) = floor(10^floor(2+log_10(n-1))/n).
EXAMPLE
a(32)=31 since 1/32 = 0.0312500000...
MATHEMATICA
Table[FromDigits[RealDigits[1/n, 10, 2][[1]]], {n, 70}] (* Harvey P. Dale, Jan 19 2018 *)
CROSSREFS
Sequence in context: A274561 A253221 A222633 * A243226 A283237 A036786
KEYWORD
base,nonn
AUTHOR
Henry Bottomley, May 11 2001
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 25 05:51 EDT 2024. Contains 374586 sequences. (Running on oeis4.)