Catalan-Zahl und Binomialkoeffizenten. Zeigen sie die angegbene Identität. | Mathelounge
Geometrie Der Zahlen... (Catalan Edition): Minkowski, Hermann: 9781314926538: Amazon.com: Books
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RoseCode on Twitter: "Equation of the day: More on combinations. (n choose k) marks the nth row kth column of Pascal's triangle. Equation below tells about the vertical symmetry in Pascal's triangle,