12 Days of Christmas
804
99 Bottles of Beer
827
Collatz
890
Evil Numbers
630
Evil Numbers (Long)
643
Fibonacci
130925
ISBN
662
Leap Years
934
Niven Numbers
707
Niven Numbers (Long)
829
Number Spiral
572
Odious Numbers
629
Odious Numbers (Long)
641
Ordinal Numbers
633
Rock-paper-scissors-Spock-lizard
601
Seven Segment
516
SierpiΕski Triangle
85
Tongue-twisters
677
π
23