This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A291600 #37 Sep 04 2024 13:02:15 %S A291600 3141592653,4392366484,9526413073,7454969632,1459184231,3955267283 %N A291600 First 10-digit number to appear n times in the decimal expansion of Pi. %C A291600 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. %H A291600 echochamber, <a href="http://echochamber.me/viewtopic.php?t=74216">Ten repeating numbers in Pi</a>, Forums for the webcomic xkcd.com, Sep 2011. %e A291600 a(2) = 4392366484 because 4392366484 is the first 10-digit number to appear 2 times in the decimal expansion of Pi. %Y A291600 Cf. A000796, A096567, A197123, A276686, A276992, A276993, A277171, A291599. %K A291600 nonn,base,more %O A291600 1,1 %A A291600 _Bobby Jacobs_, Aug 27 2017 %E A291600 a(5)-a(6) from _Michael S. Branicky_, Sep 04 2024