For each number in the triangle, I find the minimum-sum triangle with top corner at that number. Then I take the global minimum of all of these.""" def min_with_head(row, col, s): """Return the ...

Gauss famously proved that every positive integer can be expressed as the sum of three triangular numbers (including 0 as the lowest triangular number). In fact most ...

https://doi.org/10.4169/college.math.j.46.3.172 https://www.jstor.org/stable/10.4169/college.math.j.46.3.172 The College Mathematics Journal emphasizes the first two ...