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One level 50 problem was Exercise 1.2.6.63: "Develop computer programs for simplifying sums that involve binomial coefficients" Which was solved in the book t
by cschmidt 3y ago
One level 50 problem was Exercise 1.2.6.63:
"Develop computer programs for simplifying sums that involve binomial coefficients"
Which was solved in the book titled "A = B":
https://www2.math.upenn.edu/~wilf/AeqB.html https://www2.math.upenn.edu/~wilf/AeqB.html
or
https://www.amazon.com/B-Marko-Petkovsek/dp/1568810636 https://www.amazon.com/B-Marko-Petkovsek/dp/1568810636