sierpinski carpet patterns in fractal style, multicolored background in green, purple and red colors.

angled background black carpet cell cornered creation design element eps four foursquare fractal geometric geometrical geometry hadamard illustration iterations lindenmayer logo mathematics maths matrix model orthogonal pattern patterned quad quadrangle quadrangular quadrate quadratic quadrilateral rectangular regular right rightabout sample science shape sierpinski square symmetry system template tetragon tetragonal tracery vector white