Abundant Numbers
686
Christmas Trees
499
Cubes
409
Diamonds
406
Divisors
411767377
511766474872514563600328572913
Emirp Numbers
562
Evil Numbers
661
Fibonacci
580
805657
Fizz Buzz
690
Happy Numbers
604
Leap Years
731
Niven Numbers
831
Odious Numbers
656
494
Pascal’s Triangle
611
Pernicious Numbers
420
Prime Numbers
567
Quine
479
466379
945
Sierpiński Triangle
494