12 Days of Christmas
            1,837th
        
            Abundant Numbers
            1,471st
        
            Abundant Numbers (Long)
            1,191st
        
            Christmas Trees
            1,599th
        
            Collatz
            2,391st
        
            Divisors
            3,482nd
        
            Evil Numbers
            1,467th
        
            Evil Numbers (Long)
            1,176th
        
            Fibonacci
            4,085th
        
            Fizz Buzz
            2,215th
        
            Foo Fizz Buzz Bar
            1,017th
        
            Leap Years
            3,472nd
        
            Niven Numbers
            2,414th
        
            Niven Numbers (Long)
            1,248th
        
            Odious Numbers
            1,558th
        
            Odious Numbers (Long)
            1,080th
        
            Prime Numbers
            3,242nd
        
            Prime Numbers (Long)
            1,893rd