12 Days of Christmas
276
99 Bottles of Beer
277
Abundant Numbers
708
Abundant Numbers (Long)
776
Arabic to Roman
413
Arithmetic Numbers
670
Card Number Validation
467
Catalan Numbers
838
Christmas Trees
610
Collatz
459
743
Diamonds
305
Divisors
699
Emirp Numbers
454
Emirp Numbers (Long)
509
Emojify
264
Evil Numbers
853
Evil Numbers (Long)
831
Farey Sequence
436
Fibonacci
429
934
Fizz Buzz
701
Foo Fizz Buzz Bar
512
Fractions
633
Happy Numbers
496
Happy Numbers (Long)
623
ISBN
389
Kolakoski Sequence
432
Leap Years
730
Leyland Numbers
635
Look and Say
418
Lucky Numbers
514
Morse Encoder
238
Niven Numbers
784
Niven Numbers (Long)
885
Odious Numbers
851
Odious Numbers (Long)
829
Ordinal Numbers
382
Pangram Grep
571
Pascal’s Triangle
554
Pernicious Numbers
686
Pernicious Numbers (Long)
728
Prime Numbers
654
Prime Numbers (Long)
701
Quine
946
Recamán
664
Rock-paper-scissors-Spock-lizard
404
Roman to Arabic
392
Time Distance
338
Transpose Sentence
429
Van Eck Sequence
321
π
400
√2
389