12 Days of Christmas
784
99 Bottles of Beer
640
Abundant Numbers
670
Christmas Trees
629
Diamonds
592
Divisors
891
Emirp Numbers
520
Fibonacci
725
Fizz Buzz
703
Fractions
356
Intersection
579
Kolakoski Sequence
437
Leap Years
652
Niven Numbers
833
Niven Numbers (Long)
788
Number Spiral
198
Ordinal Numbers
663
Pangram Grep
Pernicious Numbers
483
Prime Numbers
569
Quine
946
Recamán
655
Van Eck Sequence
358
π
63