Similar to プラスチック数

Four fours

Five lemma

Five-dimensional space

Six-dimensional space

Figure-eight knot (mathematics)

Nine lemma

Hundredth

One-form (differential geometry)

Partition of unity

Two-form

Sums of three cubes

Ages of Three Children puzzle

4-manifold

68–95–99.7 rule

6-j symbol

A* search algorithm

AB5 category

ABC@Home

Abc conjecture

Abramowitz and Stegun

Acta Mathematica

ADF-GLS test

AKS primality test

AMS-LaTeX

Analyse des Infiniment Petits pour l'Intelligence des Lignes Courbes

Annales de Gergonne