login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A050281
a(n) is the starting position of the first occurrence of a string of n 2's in the decimal expansion of Pi.
14
6, 135, 1735, 4902, 65260, 963024, 82599811, 175820910, 1270311937, 20717271655, 225023890967, 1479132847647, 5547233660249
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..13.
Peter Trüb, 22.4 trillion digits of pi
Eric Weisstein's World of Mathematics, Pi Digits.
CROSSREFS
Cf. A035117.
Sequence in context: A295408 A301463 A220064 * A096756 A386415 A356505
Adjacent sequences: A050278 A050279 A050280 * A050282 A050283 A050284
KEYWORD
nonn,base,more
AUTHOR
Eric W. Weisstein
EXTENSIONS
More terms from Colin Martin (cbmartin(AT)tpg.com.au), Mar 03 2002
a(10) from Giovanni Resta, Oct 02 2019
a(11)-a(13) from Dmitry Petukhov, Jan 14 2020
STATUS
approved

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified April 27 18:25 EDT 2026. Contains 395056 sequences.
License Agreements, Terms of Use, Privacy Policy