(The most nerdy 2025 post received so far - this one from Math Cafe on X)

2025 = Number of spanning trees in the complete bipartite graph K_{3,5}.

https://en.wikipedia.org/wiki/Complete_bipartite_graph
Post image

Comments

Posting Rules

  • Be respectful to others
  • No spam or self-promotion
  • Stay on topic
  • Follow Bluesky's terms of service