🧮!

#binomial coefficient #factorial #enumeration #counting principles #combinatorial identities

✌️C✌️=1️⃣

#combinatorics #choose function #nCr #binomial coefficient #2 choose 2

🔢C🔢

#combinations #combinatorics #nCr #binomial coefficient #choosing items

∑(-1)ᵏ(𝛼C𝑘)𝑓(𝑥−𝑘ℎ)

#grünwald–letnikov formula #binomial coefficient #finite difference #fractional calculus #sum definition #alternating series

{n}choose{k}📍➡️

#erdős–ko–rado #binomial coefficient #n choose k #n-1 choose k-1 #fixed element #maximum size formula #combinatorics result