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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A195138 First digit to appear n times in the decimal expansion of e. 10
 2, 2, 8, 8, 2, 2, 2, 2, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 3, 9, 9, 2, 7, 4, 4, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The digits 0 and 5 do not appear among the first 30000 terms. When do they first appear? - Jianing Song, Apr 01 2021 LINKS Alois P. Heinz, Table of n, a(n) for n = 1..10000 EXAMPLE From Michael De Vlieger, Sep 10 2017: (Start) a(n) is the first decimal digit of e that first appears n times when e is expanded to the -m place:    n  a(n)  m    1   2    0    2   2    4    3   8    7    4   8    9    5   2   22    6   2   30    7   2   33    8   2   40    9   9   58   10   7   63   11   7   64   12   7   68   13   7   78   14   7   83   15   7   89   16   7   99 (End) MATHEMATICA With[{e = First@ RealDigits[N[E, 10^4]]}, Function[t, -1 + Map[FirstPosition[t, #] &, Range@ Max@ t][[All, -1]]]@ Table[BinCounts[Take[e, n], {0, 10, 1}], {n, 10^3}]] (* Michael De Vlieger, Sep 10 2017 *) CROSSREFS Cf. A001113, A195844, A277270, A290643, A290644. Cf. A096567, A195139, A195141, A280811, A341438. Sequence in context: A095297 A269545 A258983 * A094887 A021441 A196066 Adjacent sequences:  A195135 A195136 A195137 * A195139 A195140 A195141 KEYWORD nonn,base AUTHOR Omar E. Pol, Oct 22 2011 EXTENSIONS More terms from D. S. McNeil, Oct 22 2011 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.

Last modified May 23 17:47 EDT 2022. Contains 353993 sequences. (Running on oeis4.)