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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A050284 a(n) is the starting position of the first occurrence of a string of (at least) n '5's in the decimal expansion of Pi. 13
 4, 130, 177, 24466, 24466, 244453, 3517236, 168743355, 5050944965, 7644991298, 157675736216, 1618922020656, 7604259624808, 7604259624808 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS This sequence has a(4) = a(5) = A096759(5) < A096759(4). As can be seen from a(1) = 4 (referring to the '5' in 3.1415...), position p means the string starts at the p-th digit after the decimal point. - M. F. Hasler, Apr 13 2019 a(11) > 99*10^9. - Giovanni Resta, Oct 02 2019 a(15) > 22*10^12. - Dmitry Petukhov, Jan 29 2020 LINKS Table of n, a(n) for n=1..14. Peter Trüb, 22.4 trillion digits of pi Eric Weisstein's World of Mathematics, Pi Digits. CROSSREFS Cf. A096759 (variant), ...A050283, A050285... (analog for digits ..., 4, 6, ...). Sequence in context: A299136 A117897 A001425 * A096759 A299367 A299931 Adjacent sequences: A050281 A050282 A050283 * A050285 A050286 A050287 KEYWORD nonn,base,more AUTHOR Eric W. Weisstein EXTENSIONS More terms from Colin Martin (cbmartin(AT)tpg.com.au), Mar 03 2002 Typo in a(10) corrected by Giovanni Resta, Oct 02 2019 a(11)-a(14) added by Dmitry Petukhov, Jan 12 2020 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 September 30 14:31 EDT 2023. Contains 365792 sequences. (Running on oeis4.)