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How to enumerate unique lattice polygons for a given area using Pick's Theorem?
Pick's Theorem
Suppose that a polygon has integer coordinates for all of its vertices. Let $i$ be the number of integer points interior to the polygon, and let $b$ be the number of integer points on ...
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Number of Pieces a regular $n$-gon is cut into by its diagonals [closed]
In how many pieces a regular n-gon is cut into by its diagonals?
I need a general formula.
By inspection, I have the solution to some lower values of $n$.
For $n=3,4,5,6$ solutions are $1, 4, 11, ...
