12 Days of Christmas
395
Arrows
396
Christmas Trees
601
Collatz
727
Evil Numbers
817
Evil Numbers (Long)
797
Fibonacci
628
723
Fractions
410
Happy Numbers
551
Leap Years
812
Odious Numbers
529
849
Odious Numbers (Long)
827
Pangram Grep
574
Pernicious Numbers
763
Prime Numbers
407
Quine
849
946
Reverse Polish Notation
566
Roman to Arabic
455
542
Time Distance
479