12 Days of Christmas
721
99 Bottles of Beer
572
Abundant Numbers
534
Abundant Numbers (Long)
637
Arabic to Roman
248
Arithmetic Numbers
718
Ascending Primes
366
Card Number Validation
328
Catalan Numbers
393
Christmas Trees
649
Collatz
724
Divisors
863
Emirp Numbers
466
Emirp Numbers (Long)
511
Evil Numbers
457
Evil Numbers (Long)
454
Fibonacci
500
Fizz Buzz
900
Foo Fizz Buzz Bar
862
Happy Numbers
437
Happy Numbers (Long)
500
Niven Numbers
646
Niven Numbers (Long)
709
Prime Numbers
516
Prime Numbers (Long)
549
Rock-paper-scissors-Spock-lizard
394
Spelling Numbers
364
π
381
τ
363
𝑒
348