12 Days of Christmas
            
                        
                    851
                        
                    
        
            99 Bottles of Beer
            571755
                        
                    
        
            Abundant Numbers
            
                        
                    286
                        
                    
        
            Arabic to Roman
            
                        
                    497
                        
                    
        
            Arrows
            
                        
                    361
                        
                    
        
            Christmas Trees
            
                        
                    560
                        
                    
        
            CSS Colors
            
                        
                    242
                        
                    
        
            Cubes
            
                        
                    443
                        
                    
        
            Day of Week
            
                        
                    717
                        
                    
        
            Diamonds
            
                        
                    244
                        
                    
        
            Divisors
            
                        
                    363
                        
                    
        
            Emojify
            
                        
                    481
                        
                    
        
            Fibonacci
            
                        
                    600
                        
                    
        
            Fizz Buzz
            
                        
                    966533
        
            Foo Fizz Buzz Bar
            
                        
                    859
                        
                    
        
            Happy Numbers
            
                        
                    496
                        
                    
        
            Leap Years
            
                        
                    788
                        
                    
        
            Look and Say
            
                        
                    472
                        
                    
        
            Niven Numbers
            
                        
                    467
                        
                    
        
            Odious Numbers
            
                        
                    303
                        
                    
        
            Ordinal Numbers
            
                        
                    482
                        
                    
        
            Pangram Grep
            
                        
                    
                        
                    
                        
                    
        
            Pascal’s Triangle
            
                        
                    374
                        
                    
        
            Prime Numbers
            
                        
                    267
                        
                    
        
            Quine
            
                        
                    490
                        
                    
        
            Rock-paper-scissors-Spock-lizard
            
                        
                    548
                        
                    
        
            United States
            
                        
                    148
                        
                    
        
            Vampire Numbers
            
                        
                    138
                        
                    
        
            π
            
                        
                    59