A061861 - OEIS

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A061861

First two significant digits of 1/n written in decimal.

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

Table of n, a(n) for n=1..69.

FORMULA

a(n) = floor(10^floor(2+log_10(n-1))/n).

EXAMPLE

a(32)=31 since 1/32 = 0.0312500000...

MATHEMATICA