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OEIS A000256: Simple triangulations of the plane

Author
Mike Breault
Published
Sat 21 Jun 2025
Episode Link
None

We explore A000256, the OEIS entry counting simple triangulations of the plane. We unpack what a “simple triangulation” means, why counting them is rich in geometry and combinatorics, and how these ideas connect to ears in polygons, Delaney triangulations, and the empty-circle condition. Along the way we touch computational methods and the role of triangulations in mesh generation and computational geometry.


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