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A322716 Number of times the digit 1 appears in the first 10^n decimal digits of Euler's number e = exp(1), counting starts after the decimal point. 9
2, 6, 96, 989, 10264, 100132, 1000577, 10004438, 99982926, 999989229 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

It is not known if e is normal, but the distribution of decimal digits found for the first 10^n digits of e shows no statistically significant departure from a uniform distribution.

LINKS

Table of n, a(n) for n=1..10.

Eric Weisstein's World of Mathematics, e Digits.

MAPLE

a:=proc(n)

  local digits, EXP1, C, i;

  digits:=10^n+100;

  EXP1:=convert(frac(evalf[digits](exp(1))), string)[2..digits-99];

  C:=0;

  for i from 1 to length(EXP1) do

    if EXP1[i]="1" then C:=C+1; fi;

  od;

  return(C);

end;

CROSSREFS

Cf. A001113, A099292, A322642, A322715, A322717, A322718, A322719, A322720, A322721, A322722, A322723, A322724.

Sequence in context: A129364 A092287 A035482 * A007870 A081992 A066091

Adjacent sequences:  A322713 A322714 A322715 * A322717 A322718 A322719

KEYWORD

nonn,base,more

AUTHOR

Martin Renner, Dec 24 2018

STATUS

approved

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Last modified March 26 22:42 EDT 2019. Contains 321565 sequences. (Running on oeis4.)