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 A112024 #11 Oct 10 2017 15:32:17 %S A112024 1,5,10,25,50,100,200,500,1000,2000,5000,10000 %N A112024 Number of cents in U.S. currency in 2005. %C A112024 The U. S. Mint actually made 20-cent coins in 1875 and 1876. In 1878, Congress ordered the coins out of circulation, and the Mint melted most of them down. What few 20-cent coins are left are now collector's items that go for a few hundred dollars. - _Alonso del Arte_, Oct 10 2017 %D A112024 Joshua Zucker, Posting to Seq Fan mailing list, Nov 24 2005 %H A112024 U. S. Mint, <a href="https://www.usmint.gov/kids/coinnews/coinofthemonth/2003/05.html">H.I.P. Pocket Change: Coin of the Month: 1876 Twenty-Cent Coin</a>, March 2005. %K A112024 nonn,fini,full %O A112024 1,2 %A A112024 _N. J. A. Sloane_, Nov 24 2005 %E A112024 200 added by _J. Lowell_, May 13 2014 (there's a $2 bill; it's just rare.)