Go Back > Other Stuff > Open Projects > y-cruncher

Thread Tools
Old 2021-08-20, 15:09   #67
firejuggler's Avatar
Apr 2010
Over the rainbow

2×32×149 Posts

finding a certain specific chain of digit in the decimal part of pi. but can't remember wich
firejuggler is offline   Reply With Quote
Old 2021-08-21, 12:16   #68
Romulan Interpreter
LaurV's Avatar
"name field"
Jun 2011

24×613 Posts

Originally Posted by Viliam Furik View Post
What is a(20)?
See this thread.
LaurV is offline   Reply With Quote
Old 2021-08-21, 13:03   #69
Dr Sardonicus
Dr Sardonicus's Avatar
Feb 2017

210×5 Posts

Originally Posted by LaurV View Post
Ah, yes, the "primes in π" thread.

Since a(n) is standard notation for OEIS sequences, I had tried such sequences related to digits of pi.

The Wolfram Mathworld page on Pi Digits lists URLs of the the OEIS sequences a(n) for first occurrence of n consecutive decimal digits d, d = 0 to 9, in the decimal expansion of pi.

The largest value of n in any of these, however, is n = 14, for d = 0, 5, 7, and 9. These are in the first 1.21 x 1013 digits.

I suppose there might be a small chance of finding a(15) in one of these sequences among the first 6.28 x 1013 digits.
Dr Sardonicus is offline   Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
operation trillion digits? mersenneNoob Operation Billion Digits 11 2021-06-02 07:37
Google Cloud Compute 31.4 Trillion Digits of Pi Mysticial y-cruncher 30 2019-10-11 14:45
Sum of Digits davar55 Puzzles 36 2015-12-18 15:47
How many digits? kokakola Information & Answers 23 2009-11-03 05:08
All 10 Digits davar55 Puzzles 5 2007-06-18 15:06

All times are UTC. The time now is 07:14.

Tue Nov 30 07:14:45 UTC 2021 up 130 days, 1:43, 0 users, load averages: 0.76, 0.93, 1.02

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.