Gauthier Cerf

This sculpture is built from Fibonacci cubes and cuboids. The side length of a Fibonacci cube $C_n$ is the Fibonacci number $F_n$. The side lengths (HxWxL) of a Fibonacci cuboid correspond to three consecutive Fibonacci numbers. Fibonacci cubes have the amazing property that they can be built from two smaller Fibonacci cubes positioned in diametrically opposite corners and three identical Fibonacci cuboids embracing the cubes. This follows from the cubic formula $(x+y)^3=x^3+3x^2y+3xy^2+y^3$ by setting $x=F_{n-1}$ and $y=F_{n-2}$, with the Fibonacci sum $x+y=F_n$. Thus: $F_n^3=F_{n-1}^3+F_{n-2}^3+3 F_n F_{n-1} F_{n-2}$. The Matryoshka-like sculpture is obtained by recursively applying the decomposition to the cube $C_{n-1}$ down to $C_2$.