12 Days of Christmas
729
99 Bottles of Beer
608
Abundant Numbers
543
Abundant Numbers (Long)
642
Arabic to Roman
306
Arithmetic Numbers
727
Ascending Primes
376
Card Number Validation
344
Catalan Numbers
404
Catalan’s Constant
167
Christmas Trees
660
Collatz
685
Diamonds
271
Divisors
891
Emirp Numbers
469
Emirp Numbers (Long)
528
Emojify
303
Evil Numbers
727
Evil Numbers (Long)
719
Fibonacci
554
Fizz Buzz
951
Foo Fizz Buzz Bar
874
Happy Numbers
446
Happy Numbers (Long)
514
Leyland Numbers
652
Morse Decoder
104
Niven Numbers
657
Niven Numbers (Long)
725
Odious Numbers
727
Odious Numbers (Long)
719
Ordinal Numbers
544
Prime Numbers
526
Prime Numbers (Long)
564
Rock-paper-scissors-Spock-lizard
399
Spelling Numbers
379
Time Distance
386
Tongue-twisters
500
Vampire Numbers
473
π
389
τ
374
φ
716
√2
613
𝑒
356