Numerology
- 666
- Almost Integer
- Almost Zero
- Apéry's Constant Approximations
- Apocalypse Number
- Apocalyptic Number
- Baseball
- Beast Number
- Belphegor Number
- Belphegor Prime
- Catalan's Constant Approximations
- e Approximations
- Euler-Mascheroni Constant Approximations
- Evil Number
- Feigenbaum Constant Approximations
- Golden Ratio Approximations
- Jenny's Constant
- Khinchin's Constant Approximations
- Legion's Numbers
- Leviathan Number
- Number of the Beast
- Number of the Devil
- Numerology
- Pi Approximations
- Sign of the Devil
- Triskaidekaphobia
- White House Switchboard Constant
- Wyler's Constant