12 Days of Christmas
845
813
99 Bottles of Beer
721
Arrows
505
Catalan Numbers
912
Christmas Trees
620
Collatz
874
Continued Fractions
706
Divisors
842
891
Evil Numbers
958
Fizz Buzz
885
945
Fractions
723
Prime Numbers
694
Quine
493
947
Recamán
898
829
Rijndael S-box
157
Tongue-twisters
646644
Tower of Hanoi
681
√2
859