spmatich :blobcoffee:<p>Very cool. <a href="https://ioc.exchange/tags/CatalanNumbers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CatalanNumbers</span></a> <a href="https://ioc.exchange/tags/Geode" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geode</span></a> <a href="https://ioc.exchange/tags/Mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mathematics</span></a> </p><p><a href="https://phys.org/news/2025-05-mathematician-algebra-oldest-problem-intriguing.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2025-05-mathemat</span><span class="invisible">ician-algebra-oldest-problem-intriguing.html</span></a></p>