12 Days of Christmas
365
99 Bottles of Beer
305
Abundant Numbers
700
Abundant Numbers (Long)
753
Arithmetic Numbers
689
Arrows
166
Ascending Primes
317
ASCII Table
431
Catalan Numbers
657
Christmas Trees
524
Collatz
722
Diamonds
293
Divisors
857
Emirp Numbers
374
Evil Numbers
769
Fibonacci
947
Fizz Buzz
855
Happy Numbers
505
Leap Years
652
Look and Say
448
Niven Numbers
759
Odious Numbers
769
Ordinal Numbers
448
Pangram Grep
649
Pernicious Numbers
678