A291600 First 10-digit number to appear n times in the decimal expansion of Pi.

3141592653, 4392366484, 9526413073, 7454969632, 1459184231, 3955267283

Offset

1,1

Comments

This sequence was mentioned in a forum post called "Ten repeating numbers in Pi". It was about finding a 10-digit number that repeated in Pi. The answer was a(2) = A197123(10) = 4392366484.

Links

Table of n, a(n) for n=1..6.

echochamber, Ten repeating numbers in Pi, Forums for the webcomic xkcd.com, Sep 2011.

Example

a(2) = 4392366484 because 4392366484 is the first 10-digit number to appear 2 times in the decimal expansion of Pi.

Crossrefs

Cf. A000796, A096567, A197123, A276686, A276992, A276993, A277171, A291599.

Sequence in context: A257914 A257893 A015397 * A092380 A096566 A217051

Adjacent sequences: A291597 A291598 A291599 * A291601 A291602 A291603

Keyword

nonn,base,more

Author

Bobby Jacobs, Aug 27 2017

Extensions

a(5)-a(6) from Michael S. Branicky, Sep 04 2024

Status

approved