Similar to デデキント数

Binomial series

Binomial theorem

Nørlund–Rice integral

Necklace polynomial

Burnside's lemma

Hypergraph

Pascal's triangle

Pigeonhole principle

Noncrossing partition

Van der Waerden's theorem

Fisher–Yates shuffle

Simplicial complex

Hook length formula

Sieve theory

Brun sieve

Inclusion–exclusion principle

Pólya enumeration theorem

Generating function

Rising factorial

Borsuk–Ulam theorem

Matroid

Möbius function

Young tableau

Finite geometry

Josephus problem

Latin square