<p><a href="https://en.wikipedia.org/wiki/Composition_(number_theory)" class="extiw" title="w:Composition (number theory)">Compositions</a> of a number <i>n</i> correspond to <i>n-1</i> digit <a href="https://en.wikipedia.org/wiki/binary" class="extiw" title="w:binary">binary numbers</a>.
</p><p>Left <a href="https://en.wikipedia.org/wiki/tesseract" class="extiw" title="w:tesseract">tesseract</a>: 4 digit binary numbers
</p><p>Central tesseract: <a href="https://en.wikipedia.org/wiki/equivalence_relation" class="extiw" title="w:equivalence relation">equivalence relation</a> matrices 
</p>
Right tesseract: Compositions of 5
<table><tbody><tr><td style="padding: 15px;"><a href="//commons.wikimedia.org/wiki/File:Watchduck.svg" class="image"><img alt="Watchduck.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/Watchduck.svg/40px-Watchduck.svg.png" decoding="async" width="40" height="46" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/Watchduck.svg/60px-Watchduck.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/Watchduck.svg/80px-Watchduck.svg.png 2x" data-file-width="703" data-file-height="806"></a>
</td>
<td><a href="//commons.wikimedia.org/wiki/User:Watchduck" title="User:Watchduck">Watchduck</a><br><span style="color: gray; font-size: 80%;">You can name the author as "T. Piesk", "Tilman Piesk" or "Watchduck".</span>
</td></tr></tbody></table>
<span class="int-own-work" lang="en">Own work</span>