Parity Triangle Card from the OEIS

G4G15

Parity Triangle Card from the OEIS

Peter Kagey

Puzzle,Rec Math

Inspired by the fact that coloring Pascal's Triangle based on the parity of the entry results in a Sierpiński triangle-like fractal, each Parity Triangle Card illustrates a distinct two-dimensional sequence in the OEIS and is drawn using a pen plotter and is cut using a cutting plotter.

G15-084-1
G15-084-2
G15-084-3
G15-084-4