Use the formula for binomial coefficients, usually written as an n (row of the triangle) over a k (“column” in that row) with parentheses around. The first row of the triangle is n=0 and the first entry in each row is k=0, so if you’re thinking about the literal 11th row in the triangle, you would actually want to calculate binomial(10, k) for k from 0 to 10.
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