This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A279860 a(n) is the first n-digit substring to repeat in the decimal expansion of e. 1
 2, 18, 182, 1828, 98793, 987931, 4349076, 82549802, 450388721, 5291493974, 72883660263, 476539957100 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The first two occurrences of a(4) = 1828 appear consecutively as 18281828. LINKS EXAMPLE a(2) = 18 because 18 is the first 2-digit number to repeat in the decimal expansion of e = 2.7(18)28(18)... 2 appears at positions 0 and 4. 18 appears at positions 2 and 6. 182 appears at positions 2 and 6. 1828 appears at positions 2 and 6. 98793 appears at positions 478 and 494. 987931 appears at positions 478 and 494. 4349076 appears at positions 170 and 2731. ... CROSSREFS Cf. A001113, A197123. Sequence in context: A019581 A183285 A129627 * A138413 A066274 A052623 Adjacent sequences:  A279857 A279858 A279859 * A279861 A279862 A279863 KEYWORD nonn,base,more AUTHOR Bobby Jacobs, Dec 20 2016 EXTENSIONS a(8)-a(12) from Alois P. Heinz, Dec 21 2016 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 15 13:52 EDT 2018. Contains 316236 sequences. (Running on oeis4.)