👉 In mathematics, a pyramidaire is a type of polygonal number that has 12 sides. This is because it can be represented by the equation: \[ n^3 - n = 12 \] where \(n\) is the number of sides, and we're looking for an integer solution to this equation. To solve for \(n\), we can factorize the left-hand side: \[ (n-1)(n^2 + n + 1) =