Similar to ロジャース＝ラマヌジャン恒等式

Simplicial complex

Hook length formula

Sieve theory

Brun sieve

Partition function (number theory)

Bell polynomials

Inclusion–exclusion principle

Pólya enumeration theorem

Generating function

Rising factorial

Matroid

Möbius function

Dividing a circle into areas

Motzkin number

Young tableau

Finite geometry

Josephus problem

Latin square

Alignments of random points

Lehmer code

Einstein's constant

Artin reciprocity

Artin–Rees lemma