12 Days of Christmas
            427351
                        
                    
        
            Christmas Trees
            422
                        
                    
                        
                    
        
            Diamonds
            382397
                        
                    
        
            Divisors
            
                        
                    643
                        
                    
        
            Emirp Numbers
            
                        
                    340
                        
                    
        
            Evil Numbers
            549727
                        
                    
        
            Fibonacci
            600900216
        
            Fizz Buzz
            
                        
                    469
                        
                    
        
            Happy Numbers
            
                        
                    329
                        
                    
        
            Leap Years
            740672
                        
                    
        
            Niven Numbers
            
                        
                    667
                        
                    
        
            Odious Numbers
            588727
                        
                    
        
            Ordinal Numbers
            
                        
                    391
                        
                    
        
            Pangram Grep
            
                        
                    264
                        
                    
        
            Pascal’s Triangle
            332410
                        
                    
        
            Pernicious Numbers
            
                        
                    367
                        
                    
        
            Prime Numbers
            
                        
                    645
                        
                    
        
            Seven Segment
            
                        
                    152
                        
                    
        
            Spelling Numbers