Similar to 数え上げの積の法則

Hook length formula

Sieve theory

Brun sieve

Partition function (number theory)

Bell polynomials

Pólya enumeration theorem

Generating function

Rising factorial

Matroid

Möbius function

Motzkin number

Young tableau

Finite geometry

Josephus problem

Latin square

Ramanujan's congruences

Alignments of random points

Lehmer code

Rogers–Ramanujan identities

Cavalieri's principle

Hasse principle

Maximum modulus principle

Maximum principle

Principle of maximum entropy

Schwarz reflection principle

Diamond principle