12 Days of Christmas
742
763
Christmas Trees
422
Diamonds
382
475
Divisors
Emirp Numbers
Evil Numbers
560
727
Fibonacci
613
900
257
Fizz Buzz
Happy Numbers
Leap Years
740
672
Niven Numbers
Odious Numbers
600
727
Ordinal Numbers
Pangram Grep
Pascalβs Triangle
332
443
Pernicious Numbers
Prime Numbers
Seven Segment
Spelling Numbers