12 Days of Christmas
            
                        
                    843
                        
                    
        
            99 Bottles of Beer
            557748
                        
                    
        
            Abundant Numbers
            
                        
                    279
                        
                    
        
            Arabic to Roman
            
                        
                    480
                        
                    
        
            Arrows
            
                        
                    347
                        
                    
        
            Christmas Trees
            
                        
                    544
                        
                    
        
            CSS Colors
            
                        
                    228
                        
                    
        
            Cubes
            
                        
                    428
                        
                    
        
            Day of Week
            
                        
                    680
                        
                    
        
            Diamonds
            
                        
                    236
                        
                    
        
            Divisors
            
                        
                    355
                        
                    
        
            Emojify
            
                        
                    465
                        
                    
        
            Fibonacci
            
                        
                    589
                        
                    
        
            Fizz Buzz
            
                        
                    958525
        
            Foo Fizz Buzz Bar
            
                        
                    842
                        
                    
        
            Happy Numbers
            
                        
                    480
                        
                    
        
            Leap Years
            
                        
                    773
                        
                    
        
            Look and Say
            
                        
                    456
                        
                    
        
            Niven Numbers
            
                        
                    456
                        
                    
        
            Odious Numbers
            
                        
                    294
                        
                    
        
            Ordinal Numbers
            
                        
                    467
                        
                    
        
            Pangram Grep
            
                        
                    
                        
                    
                        
                    
        
            Pascal’s Triangle
            
                        
                    359
                        
                    
        
            Prime Numbers
            
                        
                    259
                        
                    
        
            Quine
            
                        
                    473
                        
                    
        
            Rock-paper-scissors-Spock-lizard
            
                        
                    538
                        
                    
        
            United States
            
                        
                    144
                        
                    
        
            Vampire Numbers
            
                        
                    132
                        
                    
        
            π
            
                        
                    58