Triskaidekaphobia: Fear of 13

Triskaidekaphobia is the fear of the number 13. This superstition is so widespread that many buildings skip the 13th floor, going directly from 12 to 14. Airlines often skip row 13, and some cities don't have a 13th Street or Avenue.

This fractal visualization shows the recursive pattern of skipping unlucky numbers throughout different scales. Watch as buildings eliminate floor 13, creating gaps that propagate through the fractal structure. The pattern repeats at smaller scales, showing how superstition creates mathematical voids in our numbering systems.

The fractal demonstrates how skipping numbers creates a self-similar pattern across different levels of recursion. Each building contains smaller buildings, each skipping their own 13th floor, creating a cascade of missing numbers. You can also explore patterns that skip all numbers containing 13, or multiples of 13.