12 Days of Christmas
780
99 Bottles of Beer
640
Abundant Numbers
728
Arabic to Roman
583
Christmas Trees
629
Day of Week
898
Diamonds
592
Divisors
891
Emirp Numbers
513
Fibonacci
935
Fizz Buzz
703
Fractions
356
Intersection
580
Kolakoski Sequence
437
Leap Years
652
Niven Numbers
833
Niven Numbers (Long)
789
Number Spiral
198
Ordinal Numbers
663
Pangram Grep
731
Pernicious Numbers
483
Prime Numbers
569
Quine
947
Recamán
655
Tongue-twisters
499
United States
154
Van Eck Sequence
358
π
63