12 Days of Christmas
604
99 Bottles of Beer
488
Abundant Numbers
750
Abundant Numbers (Long)
899
Arabic to Roman
596
Arithmetic Numbers
811
Catalan Numbers
863
Christmas Trees
713
Collatz
485
907
Diamonds
372
Divisors
750
Emirp Numbers
571
Emirp Numbers (Long)
633
Emojify
300
Evil Numbers
870
Evil Numbers (Long)
854
Farey Sequence
516
Fibonacci
451
947
Fizz Buzz
773
Foo Fizz Buzz Bar
654
Fractions
768
Happy Numbers
653
Happy Numbers (Long)
758
ISBN
514
Kolakoski Sequence
448
Leap Years
741
Leyland Numbers
768
Look and Say
529
Lucky Numbers
550
Morse Encoder
350
Niven Numbers
800
Niven Numbers (Long)
909
Odious Numbers
870
Odious Numbers (Long)
854
Ordinal Numbers
482
Pangram Grep
692
Pascal’s Triangle
614
Pernicious Numbers
702
Pernicious Numbers (Long)
765
Prime Numbers
667
Prime Numbers (Long)
721
Quine
969
Recamán
753
Rock-paper-scissors-Spock-lizard
611
Roman to Arabic
536
Time Distance
623
Van Eck Sequence
352
π
458
√2
398