12 Days of Christmas
425
99 Bottles of Beer
819
Collatz
887
Evil Numbers
631
Evil Numbers (Long)
644
Fibonacci
109925
ISBN
659
Leap Years
933
Niven Numbers
704
Niven Numbers (Long)
826
Number Spiral
573
Odious Numbers
629
Odious Numbers (Long)
642
Ordinal Numbers
630
Rock-paper-scissors-Spock-lizard
456
Seven Segment
455
SierpiΕski Triangle
115
Tongue-twisters
448
π
21